Method and order-picking storage facility for storing and order-picking goods

ABSTRACT

In a method for storing and picking stackable article carriers in a picking warehouse, transport loading aids are transported between a loading station with an automatically operated loading device, a storage zone and a removal station with an automatically operated unloading device using autonomously movable, driverless transport vehicles. The transport loading aids are loaded with article carrier stack groups in the loading station and the article carriers are discharged from the transport loading aids in the unloading station. Subsequently, the article carriers for a picking order are reloaded onto one or multiple target loading aids. A picking warehouse stores and picks stackable article carriers.

The invention relates to a method and a picking warehouse for storing and picking article carriers that contain articles, in particular groceries from the fresh food sector, and are stackable, as described in claims 1 and 17.

From the prior art, picking warehouses are known in which goods-out units with different articles are formed from goods-in units with identical articles (goods-in units with articles of just one type).

The goods-out units with different articles are for example required in the supply of retail stores and/or branches of food retailers, where articles delivered to a central warehouse in large goods-in units are divided into smaller consumption units and assembled with other articles for distribution.

The articles are stored in article carriers (containers, cartons). The goods-in units comprise article carrier stacks, which are placed on loading aids (pallets, roll containers), of multiple article carriers arranged on top of one another. For example, on a euro pallet (1200 mm×800 mm) four article carrier stacks each with a base area of 600 mm×400 mm or six article carrier stacks each with a base area of 300 mm×400 mm are stacked.

The picking warehouse comprises a delivery zone for the goods-in units, a storage zone, an order processing zone and a distribution zone for the goods-out units. In the delivery zone, automatically operated depalletizing devices are provided in which article carrier stacks from the goods-in units are separated. Subsequently, the article carrier stacks are stored in the storage zone. In the order processing zone, picking orders are processed by the required article carrier stacks being retrieved from the storage zone and being transported to the reloading devices (palletizing devices). At the reloading devices, individual article carriers or the entire article carrier stack are loaded onto a target loading aid (pallet, roll container) according to the picking order. The transport between the delivery zone and the storage zone of the article carrier stack to be stored is carried out by means of a storage conveyor system and the transport between the storage zone and the order processing zone of the article carrier stack to be picked is carried out by means of a retrieval conveyor system. Such a picking warehouse is described for example in WO 2015/144139 A1. This known picking warehouse is predominantly suitable for transporting containers, less for transporting cartons. This is due to the fact that usually it is to be expected that the cartons absorb humidity and lose stability such that a stack of multiple cartons stacked on top of one another is at risk of falling over, in particular where there are acceleration forces. To counteract this, cartons may more or less be manipulated individually only, which strongly minimizes the power of such a picking warehouse.

WO 2012/127102 A1 discloses a picking warehouse which comprises a delivery zone for the goods-in units, a storage zone and a distribution zone for the goods-out units. The goods-in units are provided in the delivery zone and container stacks are separated therefrom. The separated container stacks are transported into the storage zone by a storage conveyor system and are provided at different storage buffer tracks in the storage zone. A gantry robot, which can remove individual containers or partial container stacks from the container stacks and place them on specified storage places on the base, is arranged in the storage zone. At each storage place, there is a stack of multiple containers arranged on top of one another with identical articles. Picking is carried out by a gantry robot by individual containers or partial container stacks being removed from the container stacks and being assembled to order-related container stacks (goods-out units) on free storage places in the storage zone. Subsequently, the order-related container stacks are dispatched onto different retrieval buffer tracks and are transported from the storage zone into the distribution zone by the retrieval buffer tracks and a retrieval conveyor system. This picking warehouse is designed merely for storing and picking containers, not cartons.

Picking warehouses in which mobile storage racks are transported by autonomously movable, driverless transport vehicles are also known, for example from US 2017/022010 A1 or WO 2018/039423 A1. The storage racks comprise compartment bases, which are arranged in superimposed storage planes, on which articles are placed. Receiving an article carrier stack of multiple article carriers stacked on top of one another in the respective storage rack is not provided.

WO 2018/090081 A1 discloses a picking warehouse for storing and picking article carriers that contain articles and are stackable, in which article carrier stack groups are transferred to transport racks in a loading station and then transported from the loading station to a storage zone by autonomously movable, driverless transport vehicles. To process a picking order, loaded transport racks are transported from the storage zone to an unloading station by autonomously movable, driverless transport vehicles and are transferred to a target loading aid by an automatically operated unloading device (jointed-arm robot) there. The target loading aid is transported onto a transport rack together with the order stack. The transport racks merely have a transport frame and a base. However, the transport racks do not have side walls to stabilize the position of the article carrier stack group, such that the transport vehicles can only be moved with low dynamics. To still create an effective picking warehouse, the number of transport vehicles must be increased significantly. The “traffic density” and the investment costs increase significantly. Irrespectively thereof, it must be expected that article carriers will fall from the article carrier stack during transport if the hall floor has the slightest unevennesses.

EP 2 746 194 A1 discloses a method for storing and picking articles on pallets, in which the pallets are transported within the picking system by means of autonomously movable, driverless transport vehicles (without transport loading aids).

DE 10 2017 000 274 A1 discloses a mobile transport loading aid with support rails inclined in a downward direction and arranged in parallel, on which a large load carrier can be placed. In the large load carrier, there are structural elements for the production of a vehicle. However, the structural elements are not picked.

WO 2012/116 690 A1 discloses a mobile stack loading aid for transporting a picked stack of tires, which comprises a floor inclined in a direction and a stack support vertically aligned with the floor, against which the stack of tires can be leaned. Mobile transport loading aids for transporting the articles to the stacking robot are not used. Rather, the stacking robot connects to a production line for stacking the tires on the stack loading aid and the transport of the produced tires is performed by a stationary conveying system (for example, a roller conveyor) from the production line to the stacking robot.

It is one object of the invention to create an improved method for storing and picking article carriers which contain articles and are stackable and a corresponding picking warehouse. In particular, largely trouble-free operation and fast article handling should be possible regardless of the article carrier used (containers made of plastic materials or cartons).

The object of the invention is achieved by the following steps:

-   -   i) providing autonomously movable, driverless transport vehicles         in the picking warehouse, said transport vehicles each having a         chassis with a drive unit and a loading platform arranged on the         chassis for receiving a mobile transport loading aid,     -   ii) providing mobile transport loading aids in each case for         receiving an article carrier stack group in the picking         warehouse, wherein the mobile transport loading aids comprise         empty transport loading aids,     -   iii) providing a transport safeguard on at least some of the         autonomously movable, driverless transport vehicles or on at         least some of the mobile transport loading aids, said transport         safeguard serving for stabilizing the position of an article         carrier stack group while it is received on the mobile transport         loading aid,     -   iv) providing article carrier stack groups comprising multiple         article carriers arranged next to one another and on top of one         another in a delivery zone 4 of the picking warehouse,     -   v) transporting empty transport loading aids by means of the         autonomously movable, driverless transport vehicles to a loading         station and providing one or multiple empty transport loading         aid(s) either on one or on multiple automatically operated         loading device(s) or on a buffer surface close to the loading         device(s),     -   vi) loading one of the empty transport loading aids, which is         provided at the automatically operated loading device, with the         article carrier stack group, which is provided in the delivery         zone and is taken over essentially unchanged on the empty         transport loading aid, by the automatically operated loading         device,     -   vii) transporting the transport loading aid loaded with the         article carrier stack group by the autonomously movable,         driverless transport vehicle from the loading station to a         storage zone and stabilizing the position of the article carrier         stack group by the transport safeguard during the transport         movement of the loaded transport loading aid,     -   viii) placing the transport loading aid loaded with the article         carrier stack group on a storage surface in the storage zone,     -   ix) storing the transport loading aids loaded with the article         carrier stack groups in the storage zone,     -   x) processing a picking order comprising the following steps         -   transporting one or multiple transport loading aid(s)             containing the article carriers required for a picking order             from the storage zone to an unloading station and providing             said transport loading aid(s) either at one or at multiple             automatically operated unloading device(s) or on a buffer             surface close to the unloading device(s) by means of one or             multiple autonomously movable, driverless transport             vehicle(s) and stabilizing the position of the article             carrier stack group by the transport safeguard during the             transport movement of the loaded transport loading aid,         -   unloading one or multiple ones of the transport loading             aid(s), which is (are) provided at the automatically             operated unloading device(s), by removing the article             carriers required for processing the mentioned picking             order, and         -   assembling the article carriers on one or multiple target             loading aids for the mentioned picking order in an order             processing zone.

In this regard, it is advantageous that regardless of which article carrier is used, the article carriers can be stacked directly on top of one another in larger numbers. The article carriers can be made of different materials, for instance containers made of plastic materials or cartons can be used. In the picking warehouse, either containers or cartons are picked. However, a combination of containers and cartons is also conceivable. Likewise, the article carrier can form different dimensions. Usually, a base surface of the article carriers is 600 mm×400 mm or 300 mm×400 mm. The transport trips can be performed more efficiently since a higher number of article carriers can be transported per transport trip.

For transporting the empty transport loading aids and transport loading aids loaded with article carrier stack groups, autonomously movable, steerable transport vehicles (of a driverless transport system) are used, which are automatically controlled by a superordinate main computer. Such transport vehicles are known to the person skilled in the art as “automated guided vehicles (AGV in short)” or as “autonomous mobile robots (AMR in short)”. Such a transport system comprises the transport vehicles, means for determining the location and detecting the position of the transport vehicles and means for transmitting data to and from the transport vehicles in the transport system. Each transport vehicle comprises a chassis having a drive unit and a loading platform for receiving/discharging/transporting a mobile (non-stationary) transport loading aid arranged on the chassis. Different technologies are known for navigating the transport vehicles. Hence, besides the track-guided, inductive or optical navigation, laser navigation is also used in which each transport vehicle is equipped with a laser scanner that detects stationary reference points in the environment and navigates the transport vehicle on the basis of the detected environmental features. Navigation is also possible by means of a GPS system, in particular a differential global positioning system (dGPS).

Such a transport system can be integrated into existing picking warehouses without any problems and can be very well adjusted to fluctuating power requirements.

Although, advantageously, the transport vehicles are configured to have the same performance data (travel speed, acceleration values, load suspension and the like), groups of transport vehicles having different performance data can be used as well. This can prove advantageous where different temperature zones are provided in the picking warehouse. In this case, the transport vehicles of the first group and of the second group can have different control electronics or wheels with different material properties.

The provision of article carrier stack groups comprises the provision of article carrier stack groups preferably containing articles of just one type. The article carrier stack groups comprise (stacked) article carriers arranged next to one another and on top of one another. In particular, the article carrier stack groups comprise stack layers located above one another which each comprise multiple article carriers arranged next to one another. The article carriers within one stack layer are oriented either equally or differently. The stack layers can in turn have the same or different compositions or be oriented differently. If the article carrier stack group contains articles “of just one type”, the article carriers of this article carrier stack group are the same articles. Although this is rather an exception, the provision of article carrier stack groups can also comprise the provision of mixed article carrier stack groups. A mixed article carrier stack group comprises article carriers with different articles. In this regard, the lower article carriers in the article carrier stack group can contain a first article and the upper article carriers can contain a second article.

To ensure transport safety of high article carrier stack groups and also dynamic travel movements of the transport vehicles, transport safeguards are used. Moreover, an unloading operation can be carried out more reliably by the use of the transport safeguards.

The transport safeguards can be provided on at least some of the autonomously movable, driverless transport vehicles or on at least some of the mobile transport loading aids. The respective transport safeguard serves to stabilize the position of an article carrier stack group when it is accommodated on the mobile transport loading aid and is transported and/or unloaded.

A transport loading aid can also be understood as a source loading aid.

According to a first embodiment, the transport loading aid can have side walls and a base wall part. One (single) article carrier stack group is accommodated between the side walls on the base wall part. When the (single) article carrier stack group is transported by a transport vehicle or when the article carriers are unloaded from the transport loading aid, a displacement of the article carriers or article carrier stack group can be prevented or at least limited.

According to a second embodiment, the transport loading aid can have a base wall part and the transport vehicle can have side walls. One (single) article carrier stack group is accommodated between the side walls on the base wall part. When the (single) article carrier stack group is transported by a transport vehicle or when the article carriers are unloaded from the transport loading aid, a displacement of the article carriers or article carrier stack group can be prevented or at least limited.

According to both embodiments, the side walls form the transport safeguard and accordingly serve to stabilize the position of the article carriers/article carrier stack group. Only by the use of the described transport safeguard, article carriers of bad quality, for example due to moisture absorption, damage and the like, can be transported as article carrier stack group on the one hand between a delivery zone and a storage zone and on the other hand between a storage zone and an order processing zone.

In one of the method steps, it is provided that empty transport loading aids are transported to a loading station by the autonomously movable, driverless transport vehicles and, there, are provided either at one or multiple automatically operated loading device(s) or on a buffer surface close to the loading device(s). The buffer surface is formed on a base.

The transport loading aids are transported from the unloading station back to the loading station after removal of the last article carrier/article carrier stack and, there, the empty transport loading aids are provided either at an automatically operated loading device or on the buffer surface. However, in principle, a supplier can also deliver empty transport loading aids, which are taken over in the delivery zone and transported to the loading station.

Loading an empty transport loading aid with one (single) article carrier stack group can be carried out in a particularly simple and efficient manner.

The article carrier stack group(s) is transported to the one or multiple loading device(s) on a conveying system and is transferred “unchanged” to the empty transport loading aid(s) by one or multiple loading device(s), but article carrier stacks or individual article carriers of the article carrier stack group are not manipulated. This proves advantageous in several aspects:

-   -   Firstly, this proves advantageous for article carriers of         carton, since the stacking lugs and the stacking recesses that         are usually present in the area of the container walls remain         engaged for mutual positional fixing of the article carriers         stacked on top of one another, and damage to the stacking lugs         and stacking recesses caused by repeated lifting and placing of         article carriers is avoided.     -   Secondly, this proves advantageous where the article carriers         are made of a plastic material, since the stacking edges that         are usually present in the area of the container walls remain         engaged for mutual positional fixing of the article carriers         stacked on top of one another, and wear to the stacking edges         caused by repeated lifting and placing of article carriers is         avoided.     -   Thirdly, the loading device can be structured particularly         simply.     -   Fourthly, loading can be carried out very quickly, which is of         significant advantage in particular where rather less different         articles and a high amount of articles are picked, as can be the         case for example in the food sector. In this regard, the         articles are supplied by different suppliers and in large         amounts within a limited period of time. However, the articles         must be transported into the storage zone and subsequently         picked within a very short time. After the (individual) article         carrier stack group is transported from the delivery zone to the         loading station “unchanged” and is transferred onto the empty         transport loading aids at one or multiple loading devices, no         delays in processing the supplied articles occur.

The transport loading aid is loaded with a preferably “unpacked” article carrier stack group. An “unpacked” article carrier stack group is an article carrier stack group without additional packaging film (stretch film or shrink film) with which the article carrier stack group can be packed or without additional strapping tape with which the article carrier stack group can be strapped. A packaging film or a strapping tape can, for example, have been removed prior to loading the transport loading aid.

After loading, the transport loading aid, which is now loaded (preferably with an “unpacked” article carrier stack group), is transported from the loading station in the delivery zone to the storage zone by means of one of the transport vehicles and is placed on a free storage place there. The transport vehicle comprises a loading platform, by means of which the transport loading aid can be taken over on the transport vehicle and by means of which the transport loading aid can be discharged from the transport vehicle and supported on the transport vehicle during the travel movement. For this purpose, the loading platform can for example be designed such that it can be lifted and lowered in relation to the chassis.

The transport loading aids can be placed on storage places in the storage zone. The storage places are preferably formed on a base in the storage zone on a storage surface. In the storage zone, there are transport loading aids which are still loaded with one article carrier, some article carriers or with an entire (preferably “unpacked”) article carrier stack. While some of the partially unloaded transport loading aids are transported from the order processing zone back into the storage zone after unloading, the completely loaded transport loading aid are transported from the delivery zone directly into the storage zone.

The storage zone is connected, in respect of a conveying stream, to the loading station in the delivery zone via some of the transport vehicles of the transport system and to the unloading station in the order processing zone via some of the transport vehicles of the transport system. The unloading station in the order processing zone can additionally be connected, in respect of a conveying stream, to the loading station in the delivery zone via some of the transport vehicles.

Lastly, for processing one of multiple picking orders (which are electronically detected in an order-processing computer), at least one transport loading aid containing the required (equal) articles/article carriers is transported from the storage zone to the unloading station by means of one of the transport vehicles. Where different articles/article carriers are required, the transport loading aids containing these articles/article carriers are transported from the storage zone to the unloading station by means of multiple transport vehicles. The unloading station comprises one or multiple automatically operated unloading devices, by means of which unloading of one or multiple ones of the target loading aid(s) is performed automatically by removing the article carriers required for processing the mentioned picking order and gathering the article carriers on one or multiple target loading aids, thus without any manual processing steps.

For example, a picking order comprises a article carriers with a first article 24 and article carriers with a second article 18.

A first transport vehicle transports a transport loading aid with the article carrier stack group containing the first article from the storage zone to the unloading station and a second transport vehicle transports a transport loading aid with an article carrier stack group containing the second article from the storage zone to the unloading station.

The transport loading aid are provided one after the other at a single unloading device or next to one another at a single unloading device or in parallel at multiple unloading devices.

If a previous picking order is still processed at the unloading device(s), the transport loading aid(s) can be first placed on a buffer surface close to the unloading device(s) by the transport vehicle(s). As soon as the unloading device has unloaded a transport loading aid of the previous picking order and the transport loading aid has been transported away from said unloading device, a transport loading aid of the present picking order can be transported from the buffer surface to the unloading device by means of a transport vehicle and can be provided there.

Then, the transport loading aid, which is (are) provided at the automatically operated unloading device(s), is unloaded by the unloading device by removing the article carriers required for processing a picking order.

Unloading one or multiple ones of the transport loading aid(s) can comprise removing an individual article carrier. If the article carrier is located in an article carrier stack, the uppermost article carrier in the stack is removed. Unloading one or multiple ones of the transport loading aid(s) can comprise removing a partial article carrier stack of at least two article carriers stacked on top of one another. If the article carrier is located in an article carrier stack, the uppermost article carriers in the stack are removed as a partial stack. Unloading one or multiple ones of the transport loading aid(s) can optionally even comprise removing an entire article carrier stack of all article carriers stacked on top of one another.

According to the latter embodiments, a partial stack or an entire article carrier stack of the article carrier stack group can be unloaded from the transport loading aid by the unloading device “unchanged”, but individual article carriers of the article carrier stack group are not manipulated. This proves advantageous in several aspects:

-   -   Firstly, this proves advantageous for article carriers of         carton, since the stacking lugs and the stacking recesses that         are usually present in the area of the container walls remain         engaged for mutual positional fixing of the article carriers         stacked on top of one another, and damage to the stacking lugs         and stacking recesses caused by repeated lifting and placing of         article carriers is avoided.     -   Secondly, this proves advantageous where the article carriers         are made of a plastic material, since the stacking edges that         are usually present in the area of the container walls remain         engaged for mutual positional fixing of the article carriers         stacked on top of one another, and wear to the stacking edges         caused by repeated lifting and placing of article carriers is         avoided.     -   Thirdly, the unloading device can be structured particularly         simply.     -   Fourthly, unloading can be carried out very quickly, which is of         significant advantage in particular where rather less different         articles and a high amount of articles are picked, as can be the         case for example in the food sector.

After or while unloading the transport loading aid(s), the article carriers are gathered on one or multiple target loading aids for the mentioned picking order.

Unloading the transport loading aids for a picking order can also be performed in an order (sequence) determined by the control system. The article carriers/article carrier stacks are provided at the unloading station in this order and are transferred onto the target loading aid in this order. On the other hand, an order in the provision of the transport loading aids at the unloading station can also be established via the transport vehicles.

Either article carriers of a single article or article carriers of different articles can be assembled on a target loading aid (goods-out unit) according to a picking order.

Despite the fact that the invention is not to be understood as being restricted to use in the fresh food sector, this is the preferred field of application. This is mainly because perishable articles, such as fruit and vegetables, require a fast turnover of articles and usually only a limited number of different types have to be picked at the same time. In general, the advantages of this application can also be well implemented in the area of “general merchandise” or in the textile sector.

It can also be advantageous if the provision of article carrier stack groups comprises the provision of article carrier stack groups on delivery load carriers and loading one of the empty transport loading aids with one of the article carrier stack groups comprises loading one of the empty transport loading aids with one of the article carrier stack groups on a delivery load carrier. By this measure, loading the empty transport loading aids can be facilitated again and the stability of the article carrier stack group remains unchanged. Costly and time-consuming depalletizing can be dispensed with.

A particularly simple embodiment results if assembling the article carriers for the mentioned picking order is carrier out such that an individual article carrier removed from the article carrier stack group (preferably containing articles of just one type) at the unloading device or an article carrier stack removed from the article carrier stack group (preferably containing articles of just one type) is transferred onto a target loading aid by the unloading device. Such a variant is particularly suitable if the picking warehouse has to be set up in a particularly compact manner According to this embodiment, the one or multiple unloading device(s) forms/form a picking device for unloading the transport loading aid(s) and for assembling (loading) one or multiple target loading aid(s) with article carriers according to the picking order/picking orders.

The following method steps also prove favorable

-   -   i) transporting a transport loading aid from the unloading         station back to the storage zone after removal of the article         carriers, if not all article carriers have been removed from the         mentioned transport loading aid, or     -   ii) transporting a transport loading aid from a first unloading         device to a second unloading device after removal of the article         carriers, if not all article carriers have been removed from the         mentioned transport loading aid and if said article carriers are         needed at the second unloading device for a picking order, or     -   iii) transporting a transport loading aid from the unloading         device to a waiting zone in the unloading station after removal         of the article carriers, if not all article carriers have been         removed from the mentioned transport loading aid and if said         article carriers are needed at the mentioned unloading device or         one of the unloading devices for an already advised picking         order, or     -   iv) transporting a transport loading aid back to the loading         station after removal and providing the transport loading aid         either at the automatically operated loading device or on the         buffer surface, if all article carriers have been removed from         the mentioned transport loading aid,     -   v) stabilizing the position of an opened article carrier stack         group if not all article carriers were removed from the         mentioned transport loading aid, by the transport safeguard         during the mentioned transport movement according to case         i), ii) and iii).

The main computer controls the transport vehicles depending on the picking orders that are actively being processed. If not all articles are required for a first picking order and the remaining articles are sufficient for a second picking order, a transport vehicle can transport the transport loading aid containing these articles/article carriers from the respective unloading device for instance to another unloading device if these are soon required. Moreover, an intermediate buffering of the transport loading aid on the one hand on a buffer surface close to the unloading device is possible and on the other hand in a waiting zone comprising the unloading station, which is located at a shorter distance from the unloading device than the storage zone. Empty transport loading aids are instead transported to the loading station directly and via the shortest way. Thus, path-optimized trips of the transport vehicles result.

The following steps also prove advantageous

-   -   providing a first temperature zone in the storage zone, in which         the transport loading aids with the article carrier stack groups         comprising article carriers arranged next to one another and on         top of one another containing articles of a first article group,     -   providing a second temperature zone in the storage zone, in         which the transport loading aids with the article carrier stack         groups comprising article carriers arranged next to one another         and on top of one another containing articles of a second         article group,     -   definition of a first article group and of a second article         group, to which first article group articles of a first storage         temperature are assigned and to which second article group         articles of a second storage temperature are assigned, and         detecting data comprising data of the first article group, in         particular a first storage temperature for the articles, and the         second article group, in particular a second storage temperature         for the articles, on a computer system,     -   identifying the article carrier stack group and/or transport         loading aid by means of a detection device provided in the         delivery zone by reading a data carrier, said data carrier being         provided in each case on the article carrier stack groups and/or         transport loading aids,     -   selective transport of the transport loading aids in each case         loaded with the article carrier stack group using the         autonomously movable, driverless transport vehicles either to         the first temperature zone or the second temperature zone and         stabilizing the position of the article carrier stack group by         the transport safeguard during the transport movement,     -   storing the transport loading aids with the article carrier         stack group comprising article carriers arranged next to one         another and on top of one another containing articles of the         first article group in the first temperature zone,     -   storing the transport loading aids with the article carrier         stack group comprising article carriers arranged next to one         another and on top of one another containing articles of the         second article group in the second temperature zone.

By selectively storing the articles depending on the article group, the high quality requirement is met. For example, in the food sector (fresh food sector), the first temperature zone can have a temperature range of 2° C. to 7° C. and the second temperature zone can have a temperature range of 10° C. to 15° C.

The following steps are also advantageous

-   -   transporting one or multiple transport loading aid(s) containing         the article carriers required for a first picking order from the         first temperature zone, and transporting one or multiple         transport loading aid(s) containing the article carriers         required for a second picking order from the second temperature         zone, to the unloading station using a commonly used,         automatically operated unloading device and stabilizing the         position of the article carrier stack group by the transport         safeguard during the transport movement,     -   providing the mentioned transport loading aid(s) for the first         picking order either at the automatically operated unloading         device or on a buffer surface near the unloading device by means         of the autonomously movable, driverless transport vehicle(s),     -   providing the mentioned transport loading aid(s) for the second         picking order either at the automatically operated unloading         device or on a buffer surface near the unloading device by means         of the autonomously movable, driverless transport vehicle(s),     -   sequentially assembling article carriers on a first target         loading aid with multiple article carriers containing articles         of a first article group, and assembling article carriers on a         second target loading aid with multiple article carriers         containing articles of a second article group at the removal         station with a commonly used, automatically operated unloading         device.

Regardless of the temperature zone from which the articles/article carriers are retrieved, they can be manipulated at the same removal station. This simplifies the complexity of the picking system and also reduces the acquisition costs.

The method measures comprising the following steps are also advantageous

-   -   providing stack loading aids in each case for receiving and         optionally stabilizing the position of an order stack assembled         of the article carriers according to the mentioned picking         order, of which the stack loading aids comprise at least one         first stack loading aid and/or at least one second stack loading         aid, and which, in turn, comprise a base wall part and         optionally side walls projecting therefrom,     -   lading the first stack loading aid with a target loading aid at         a lading station by means of one or multiple automatically         operated lading device(s), by the target loading aid being         placed on the base wall part if a first stack loading aid is         used in the picking warehouse, and/or     -   defining the second stack loading aid as the target loading aid         if a second stack loading aid is used in the picking warehouse.

According to an embodiment, the first stack loading aid and/or the second stack loading aid can serve merely for receiving an order stack assembled of the article carriers according to the mentioned picking order and merely have a base wall part, but no side walls projecting therefrom. According to this embodiment, the side walls are formed on at least some of the transport vehicles, as described above, which serve for stabilizing the position of an order stack assembled of the article carriers according to the mentioned picking order if the order stack is received on the base wall part.

The use of the first stack loading aid or second stack loading aid allows for the reliable transport of the order stack regardless of which article carriers have been stacked. Hence, article carriers, in particular containers and cartons can be stacked mixed. Practice has shown that it is sufficient if the first stack loading aid/second stack loading aid have a first stack wall and a second stack wall. A stack layer is filled starting from the corner from back to front and from left to right or from right to left. On the other hand, a stack layer can be filled starting from the corner from left to right or from right to left and back to front. An article carrier can be positioned and stacked precisely in the corner by the transfer device. In this way, the order stack is given a high degree of stability.

A first stack loading aid can be used in the picking warehouse when the target loading aid with the order stack is delivered to the customer. A second stack loading aid can be used in the picking warehouse if the target loading aid is to be exchanged by a distribution load carrier, preferably a roll container, a pallet and the like. The distribution load carrier is for example loaded with the order stack in the load securing station and then delivered to the customer.

The first stack loading aid can comprise a transport rack, a base and, according to a possible embodiment, side walls project therefrom, wherein the transport rack forms a transport frame, against which a loading platform of the transport vehicle can be positioned, and wherein the base forms a base wall part onto which a target loading aid, in particular a pallet, with the order stack stacked thereon can be placed, and the side walls form a transport safeguard for stabilizing the position of an order stack when it is received on the base wall part with the target loading aid.

The second stack loading aid can comprise a transport rack, a base and, according to a possible embodiment, side walls project therefrom, wherein the transport rack forms a transport frame, against which a loading platform of the transport vehicle can be positioned, and wherein the base comprises a base wall part, which forms placing blocks projecting on its upper side and being separated from one another by receiving channels, onto which the article carriers of the order stack can be placed, such that the at least one second stack loading aid forms the target loading aid and the side walls form a transport safeguard for stabilizing the position of an order stack when it is received on the base wall part.

Preferably, the transport vehicle is positioned below the first/second stack loading aid and such with respect to the first/second stack loading aid that the loading platform of the transport vehicle can be positioned against the transport frame.

The following steps also prove advantageous

-   -   transporting stack loading aids by means of the autonomously         movable, driverless transport vehicles to the unloading station         and providing one or multiple stack loading aid(s) either on one         or on multiple automatically operated unloading device(s) or on         a buffer surface close to the unloading device(s),     -   assembling the article carriers according to the mentioned         picking order to the order stack on the target loading aid in         the first stack loading aid or on the base wall part of the         second stack loading aid, said first stack loading aid or second         stack loading aid being provided at the automatically operated         unloading device(s).

Like the transport loading aids, the stack loading aids can also be transported between the loading station and the unloading station by means of the autonomously movable, driverless transport vehicles. Either those transport vehicles that also transport the transport loading aids can be used, or additional autonomously movable, driverless transport vehicles are provided, which assume the transport of the stack loading aids.

In the picking warehouse, article carriers (which cannot be picked automatically), so-called “ugly article carriers”, can also be picked manually. While a large part of the article carrier, namely more than 90% of the overall article carrier assortment, is automatically picked by means of the automatically operated unloading device(s), the remaining part of the article carriers is manually picked at the partially automated unloading device(s). Automatic picking of article carriers is in particular possible if these have a first longitudinal dimension of approx. 600 mm or a second longitudinal dimension of approx. 300 mm or a third longitudinal dimension of between 600 mm and 300 mm A width can amount to between 300 mm and 400 mm. If the article carriers have a longitudinal dimension of less than 300 mm and/or if the article carriers have a lower dimensional stability, they are picked manually.

Processing a picking order can advantageously comprise the steps

-   -   transporting one or multiple transport loading aid(s) containing         the article carriers required for a picking order from the         storage zone to the unloading station and providing said         transport loading aid(s) either at one or at multiple partially         automated unloading device(s) or on a buffer surface close to         the unloading device(s) by means of one or multiple autonomously         movable, driverless transport vehicle(s) and stabilizing the         position of the article carrier stack group by the transport         safeguard during the transport movement of the loaded transport         loading aid(s),     -   manually unloading one or multiple ones of the transport loading         aid(s), which is (are) provided at the partially automated         unloading device(s), by removing the article carriers required         for processing the mentioned picking order, and     -   manually assembling the article carriers on one or multiple         target loading aids for the mentioned picking order, if the         target loading aid(s) is (are) provided at the partially         automated unloading device(s).

Providing the mentioned transport loading aid(s) at one or multiple partially automated loading device(s) may comprise the following steps

-   -   receiving a transport loading aid from an autonomously movable,         driverless transport vehicle to a lifting platform of the         unloading device(s),     -   serving the article carriers at a serving level by lifting the         transport loading aid, which is placed on the lifting platform,         in order to enable ergonomic unloading of the article carriers         by a picker.

This enables ergonomic working even during manual picking (unloading the article carriers from the transport loading aid and loading the target loading aid with article carriers).

According to an embodiment of the invention, the method comprises the following steps

-   -   transporting empty target loading aids by means of the         autonomously movable, driverless transport vehicles to the         unloading station and providing said empty target loading aids         either at one or at multiple partially automated unloading         device(s) or on a buffer surface close to the unloading         device(s) by means of one or multiple autonomously movable,         driverless transport vehicle(s),     -   manually assembling the article carriers on one or multiple         empty target loading aids for the mentioned picking order, if         the empty target loading aid(s) is (are) provided at the         partially automated unloading device(s).

In this case, different article carriers (articles) are assembled to a picking order on a target loading aid.

According to an embodiment of the invention, the method comprises the following steps

-   -   transporting partially loaded target loading target loading aid         by means of the autonomously movable, driverless transport path         from the automatically operated unloading device to the         partially automated unloading device or to a buffer surface         close to the partially automated unloading device(s) after the         articles carriers have been assembled on the partially loaded         target loading aid at the automatically operated unloading         device and if article carriers are still required for the         mentioned picking order which are provided via the target         loading aids at the partially automated unloading device(s),     -   manually assembling the article carriers on one or multiple         partially loaded target loading aids for the mentioned picking         order, if the partially loaded target loading aid(s) is (are)         provided at the partially automated unloading device(s).

The picking order comprises article carriers (articles) which can be automatically picked at an automatically operated unloading device, and article carriers which have to be picked manually at a partially automated unloading device. First, the article carriers (articles) on the target loading aid are picked at the automatically operated unloading device. Then, the target loading aid with the “opened” order stack is transported to the partially automated unloading device by an autonomously movable, driverless transport vehicle. Then, picking of the order stack is finished there manually.

The following steps according to the invention are also advantageous

-   -   transporting stack loading aids by means of the autonomously         movable, driverless transport vehicles to the unloading station         and providing one or multiple stack loading aid(s) either on one         or on multiple the partially automated unloading device(s) or on         a buffer surface close to the unloading device(s),     -   assembling the article carriers according to the mentioned         picking order to the order stack on the target loading aid in         the first stack loading aid or on a base wall part of the second         stack loading aid, said first stack loading aid or second stack         loading aid being provided at the partially automated unloading         device(s).

As already described above, reliable transport of the order stack is possible by means of the first stack loading aid/second stack loading aid, irrespective of which article carriers have been stacked. In case of manual picking, a stack layer is also filled starting from the corner from back to front and from left to right or from right to left. On the other hand, a stack layer can be filled starting from the corner from left to right or from right to left and back to front. An article carrier can be positioned and stacked precisely in the corner by the picker. In this way, the order stack is given a high degree of stability.

It also proves advantageous if the method comprises the following steps

-   -   providing an order stack load securing station either with one         or multiple automatically operated load securing device(s) or         with one or multiple automatically operated load securing         device(s) and a buffer surface close to the load securing         device(s), said load securing devices being formed for securing         transport of an order stack with a securing means,     -   transporting stack loading aids each loaded with at least one         order stack by means of the autonomously movable, driverless         transport vehicles to the mentioned order stack load securing         station and providing one or multiple stack loading aid(s)         either on one or on multiple automatically operated load         securing device(s) or on a buffer surface close to the load         securing device(s),     -   removing the order stack from the stack loading aid by means of         a lifting device, by means of which the target loading aid with         the order stack is lifted from the first stack loading aid, if         the picking warehouse comprises the first stack loading aid, or         by means of which the order stack is lifted from the second         stack loading aid if the picking warehouse comprises the second         stack loading aid,     -   securing the order stack with the securing means by means of the         automatically operated load securing device, in that the         securing means is placed circumferentially around the order         stack,     -   transporting the secured order stack, in particular by means of         the autonomously movable, driverless transport vehicles, from         the load securing station to a distribution zone,

Transporting the unloaded stack loading aids by means of the autonomously movable, driverless transport vehicles, comprising:

-   -   transporting the first stack loading aid from the load securing         station to the lading station with one or multiple automatically         operated lading device(s), if a first stack loading aid is used         in the picking warehouse, and/or     -   transporting the second stack loading aid from the load securing         station to the unloading station and providing the second stack         loading aid(s) either at an automatically operated unloading         device or on a buffer surface close to the unloading device, if         a second stack loading aid is used in the picking warehouse.

A “central” load securing station is provided, to which the order stacks with a first stack loading aid/second stack loading aid are transported by means of the autonomously movable, driverless transport vehicles. There, the order stack is secured by means of a securing means, for example a winding film or a fastening tape. The “secured” order stacks can preferably be transported away by means of the autonomously movable, driverless transport vehicles.

The object of the invention is also achieved by a picking warehouse for storing and picking articles containers that are stackable and contain articles, comprising

-   -   an order-processing computer for detecting a picking order and         for determining articles which are required for the picking         order,     -   a plurality of transport loading aids in each case for receiving         an article carrier stack group, wherein the transport loading         aids comprise empty transport loading aids,     -   a delivery zone for providing article carrier stack groups         comprising multiple article carriers arranged next to one         another and on top of one another,     -   a loading station either with one or multiple automatically         operated loading device(s) or with one or multiple automatically         operated loading device(s) and a buffer surface close to the         loading device(s), said loading device being formed for loading         one of the empty transport loading aids with an article carrier         stack group, wherein the empty transport loading aid is provided         for loading with an essentially unchanged article carrier stack         group at the automatically operated loading device, wherein the         article carrier stack group comprises multiple article carriers         arranged next to one another and on top of one another,     -   a storage zone for storing the transport loading aids loaded         with article carrier stack groups on a storage surface,     -   an unloading station with one or multiple automatically operated         unloading device(s) for unloading one or multiple transport         loading aid(s) by removing the article carried required for         processing the picking order from the article carrier stack         group, and for assembling the article carriers required for         processing the mentioned picking order, wherein the transport         loading aid(s) is (are) provided for unloading at the         automatically operated unloading device(s), and     -   a plurality of autonomously movable, driverless transport         vehicles which are controlled by a control system and each have         a chassis with a drive unit and a loading platform arranged on         the chassis for receiving a transport loading aid,         -   to transport empty transport loading aids to the loading             station and to provide one of the empty transport loading             aids either at the automatically operated loading device or             on the buffer surface close to the loading device, and         -   to transport the transport loading aid loaded with the             article carrier stack group from the loading station to the             storage zone, and         -   to transport one or multiple transport loading aid(s)             containing the article carriers required for a picking order             from the storage zone to an unloading station and to provide             said transport loading aid(s) either at one or multiple             automatically operated unloading device(s) or on a buffer             surface close to the unloading device(s),     -   wherein a provision of a transport safeguard is provided on at         least some of the autonomously movable, driverless transport         vehicles or on at least some of the mobile transport loading         aids, said transport safeguard serving for stabilizing the         position of an article carrier stack group while it is received         on the mobile transport loading aid and is transported and/or         unloaded.

It proves advantageous if the transport loading aid comprises a transport rack and a base, wherein the transport rack forms a transport frame against which a loading platform of the transport vehicle can be positioned, and wherein the base forms a base wall part on which the article carrier stack group can be placed.

It can prove favorable if the transport loading aid comprises additional side walls which form the transport safeguard for stabilizing the position of the article carrier stack group while it is placed on the base wall part, and comprise a first side wall and a second side wall, wherein the first side wall and the second side wall enclose an angle, in particular a right angle.

It can prove favorable if at least some of the autonomously movable, driverless transport vehicles in each case comprises the loading platform and side walls arranged adjacent thereto, and that the side walls form the transport safeguard for stabilizing the position of the article carrier stack group when one of the transport vehicles and one of the transport loading aids are positioned to one another and the article carrier stack group is placed on the loading platform with the transport loading aid, and comprise a first side wall and a second side wall, wherein the first side wall and the second side wall enclose an angle, in particular a right angle.

Preferably, the transport vehicle is positioned below the transport loading aid and such with respect to the transport loading aid that the loading platform of the transport vehicle can be positioned against the transport frame.

It can prove favorable if the base wall part is both inclined downwardly at a first inclination angle (α₁) with respect to a horizontal plane spanned between the first side wall and the second side wall in the direction towards the first side wall, and inclined downwardly at a second inclination angle (α₂) with respect to a horizontal plane spanned between the first side wall and the second side wall in the direction towards the second side wall, wherein the first side wall and the second side wall are aligned perpendicularly to the base wall part.

According to this embodiment, the article carrier stack group, i.e. the order stack, can be transported with the transport loading aid, i.e. the stack loading aid, particularly reliably.

An advantageous embodiment results if the picking warehouse comprises a device for detecting data relating to the article carrier stack group and/or detecting data relating to the article carrier and/or detecting data relating to the article, said device being connected to the control system by a data line in order to transmit to it the data relating to the article carrier stack group and/or the data relating to the article carrier and/or the data relating to the article, wherein the control system comprises a control logic and processes the data relating to the article carrier stack group and/or the data relating to the article carrier and/or the data relating to the article in accordance with the control logic and generates control commands, by means of which the unloading device(s), in particular a gripping unit of the unloading device, is (are) controlled and/or transport commands are generated by means of which the autonomously movable, driverless transport vehicle(s) is (are) controlled.

The data relating to the article carrier stack group can contain data selected from the group comprising a position scheme of the article carriers in the stack layers, a position image in the uppermost stack layer and a height of the article carrier stack group. The article carriers within a stack layer can be oriented either equally or differently. The stack layers arranged on top of one another can also be composed equally or differently. Based on this data, control commands for different gripping positions for gripping article carriers by the gripping system of the unloading device result.

Based on this data, on the other hand, transport commands for different transport movements for transporting the transport loading aid with the article carrier stack group by the autonomously movable, driverless transport vehicles can be generated. For example, it can be advantageous if the article carriers in one stack layer are oriented differently, such that the transport vehicle first provides the transport loading aid at the unloading device in a first service position in order to remove article carriers of a first orientation and then provides it in a second service position in order to remove article carriers of a second orientation. The first service position and the second service position are rotated in relation to one another for example by a rotational angle of 90°.

The data relating to the article carrier can be data selected from the group comprising a dimension (length, width, height) of the article carriers, material of the article carrier, design of the article carrier and a quality of the article carrier. For example, the article carriers can have different dimensions which can be determined to generate control commands for different gripping positions for gripping article carriers by the gripping system of the unloading device based on this data. The design of the article carrier can result in restrictions in the gripping positions when the order stack is formed. While a first design of an article carrier may, for example, comprise stacking lugs/stacking recesses on long sides, a second design of an article carrier may, for example, comprise stacking lugs/stacking recesses on short sides. A third design of an article carrier may, for example, not comprise any stacking lugs/stacking recesses. The same applies to article carriers with or without carrying handles, ventilation holes, additional insert boxes, additional lining with plastic film and the like. The data on a quality of the article carrier can relate to an inadmissible deformation, damage and the like.

The data relating to the articles can contain data selected from the group comprising quality features relating to the articles, number of articles in an article carrier and a position of the articles, for example in a blister. The quality features can, for example, contain data on a check of the articles for mold infestation, data on a check of the articles for damage, as also described above for the checking station.

An advantageous embodiment results if the picking warehouse comprises a checking station in the delivery zone, with

-   -   one or multiple testing device(s) for checking quality features         of the articles in the article carriers,     -   a conveying system for inward transport of an article carrier         stack group and for outward transport of an article carrier         stack group,     -   a detection device for identifying the article carrier stack         group which is connected to the control system via a data line,         and     -   an input and/or output device to input data from the check of         the quality features, which is connected to the control system         via a data line.

If the picking warehouse and method for storing and picking articles are used in the fresh food sector of groceries, where perishable articles, such as fruit and vegetables, quality features such as mold, damage and the like can be optically detected at the testing device. At the input and/or output device, the result of the check of the quality features is detected, for example the warehouse staff can electronically detect the quality feature by inputting “quality okay” or “quality deficient”. Moreover, the input of the number of removed article carriers is also possible if individual article carriers were removed from the article carrier stack group because these, for example, contain spoiled articles.

According to an embodiment of the invention, the checking station can comprise an automatically operated clamping and lifting device along the conveying system for inwardly transporting an article carrier stack group and outwardly transporting an article carrier stack group, by means of which clamping and lifting device the article carrier stack group can be separated into an upper article carrier stack and a lower article carrier stack and an access region is created between the upper article carrier stack and the lower article carrier stack, said access region allowing the removal of at least one article carrier from the lower article carrier stack or of an article from an article carrier of the lower article carrier stack.

Thereby, checking the quality of the articles can be carried out not only in the uppermost stack layer but also in a lower stack layer. This is particularly advantageous for picking groceries in the fresh food sector. Ventilation is usually poorer in the lower stack layers, which is why the quality of the articles there tends to be poorer than in the upper stack layers.

In order to take safety aspects into account, automatically operated protective plates can be moved into the access region between the upper article carrier stack and the lower article carrier stack in order to preclude any risk to a warehouse worker during manual removal of articles or article carriers.

It is also advantageous if the clamping device comprises clamping jaws movable by at least one drive device relative to one another between an opened position and a clamping position, said clamping jaws in the clamping position clamping the article carrier stack group along the circumference of at least one article carrier layer (stack layer) and on at least two sides, and the lifting device comprises a lifting frame movable by at least one drive device in the vertical direction relative to the conveying system for inward transport of an article carrier stack group and outward transport of an article carrier stack group, with the clamping jaws being mounted on said lifting frame and by which lifting frame the clamping jaws can be moved from a lower height position into an upper height position in which the upper article carrier stack of the article carrier stack group are lifted off the lower article carrier stack of the article carrier stack group.

For the purpose of better understanding of the invention, it will be elucidated in more detail by means of the figures below.

These show in a respectively very simplified schematic representation:

FIGS. 1 a, 1 b a possible embodiment of a picking warehouse for storing and picking articles in a perspective view;

FIG. 2 a a checking station with a testing device for checking quality features of the articles in the article carriers in a perspective view;

FIG. 2 b an enlarged detail of the picking warehouse for storing and picking articles with a loading station, a lading station and a load securing station in a perspective view;

FIG. 2 c a possible embodiment of an automatically operated loading device of the loading station in a perspective view;

FIG. 2 d a possible embodiment of an automatically operated unloading device of an unloading station of the picking warehouse in a perspective view;

FIG. 2 e a possible embodiment of a partially automated unloading device of an unloading station of the picking warehouse in a perspective view;

FIG. 3 a a first embodiment of a transport vehicle (automated guided vehicle or autonomous mobile robot) in a perspective view;

FIG. 3 b a second embodiment of a transport vehicle (automated guided vehicle or autonomous mobile robot) in a perspective view;

FIGS. 4 a, 4 b, 4 c a first embodiment of a transport loading aid in different views;

FIG. 5 a second embodiment of a transport loading aid in a perspective view;

FIG. 6 a third embodiment of a transport loading aid and the transport vehicle according to FIG. 3 b in a perspective view;

FIGS. 7 a, 7 b, 7 c a first embodiment of a stack loading aid in different views;

FIG. 8 a, 8 b a second embodiment of a stack loading aid without an order stack and with an “opened” order stack in a perspective view;

FIG. 9 a third embodiment of a stack loading aid and the transport vehicle according to FIG. 3 b in a perspective view;

FIG. 10 a fourth embodiment of a stack loading aid in a perspective view.

First of all, it is to be noted that in the different embodiments described, equal parts are provided with equal reference numbers and/or equal component designations, where the disclosures contained in the entire description may be analogously transferred to equal parts with equal reference numbers and/or equal component designations. Moreover, the specifications of location, such as at the top, at the bottom, at the side, chosen in the description refer to the directly described and depicted figure, and in case of a change of position, are to be analogously transferred to the new position.

It should be noted at this point that the articles 2 are not shown in the figures for the sake of better overview. However, in fact, the article carriers 3 are filled with articles 2.

FIGS. 1 a and 1 b show an embodiment of a picking warehouse 1 for storing and picking article carriers 3 that contain articles 2 (as only shown in FIG. 2 a for reasons of clarity) and are stackable. FIGS. 2 a to 2 e show individual cutouts from the picking warehouse 1.

The picking warehouse 1 comprises a delivery zone 4, a storage zone 5, an order processing zone 6, a plurality of transport loading aids 7 a, 7 b, 7 c each for receiving an article carrier stack group 8 a, 8 b, 8 c and a plurality of autonomously movable, driverless transport vehicles 9 for transporting transport loading aids 7 a, 7 b, 7 c, a loading station with at least one or multiple automatically operated loading device(s) 10 for loading the transport loading aids 7 a and an unloading station with at least one or multiple automatically operated unloading device(s) 11 for unloading the transport loading aid(s) 7 b, 7 c.

The article carrier stack group 8 a, 8 b, 8 c forms a goods-in unit and can comprise a delivery load carrier 17 a, 17 b, 17 c.

The transport loading aids 7 a are, for example, empty (unloaded) transport loading aids. The transport loading aids 7 b are, for example, completely loaded transport loading aids. The transport loading aids 7 c are, for example, partially loaded transport loading aids.

As schematically depicted in FIG. 1 a , the picking warehouse 1 comprises an order-processing computer 15 for detecting picking orders and for determining articles 2 which are required for the picking order. In this regard, a picking order comprises one order line (for example six article carriers 3 with a first article 2) or multiple order lines (for example three article carriers 3 with a first article 2 and three article carriers 3 with a second article 2). A sales order comprises at least one picking order. The picking orders are present in the form of data sets and are electronically detected by the order-processing computer 15 and transmitted to a control system 16. Each picking order comprises one or multiple order lines. If the picking order specifies multiple order lines, different articles 2 are needed. Each order line has at least specifications on a number of pieces of an ordered article 2 and on a type of article.

In the delivery zone 4, the provision of article carrier stack groups 8 a, 8 b, 8 c (goods-in units) is provided. Such article carrier stack groups 8 a, 8 b, 8 c are most times made up of article carriers 3 containing articles of just one type. The article carrier stack groups 8 a, 8 b comprise article carriers 3 that are arranged on top of one another (stacked). In particular, the article carrier stack groups 8 a, 8 b, 8 c comprise stack layers located above one another which each comprise multiple article carriers 3 arranged next to one another. The article carriers 3 within one stack layer are oriented either equally or differently. The stack layers can in turn have the same or different compositions.

The article carrier stack group 8 a shown in FIGS. 1 a, 2 a by way of example comprises article carrier stacks arranged next to one another each made up of multiple article carriers 3 arranged on top of one another. According to this embodiment, the article carriers 3 are oriented equally per stack layer. The article carrier stack corresponds to a column-like article carrier stack.

The article carrier stack group 8 b shown in FIGS. 1 a, 2 a by way of example comprises differently oriented article carriers 3 per stack layer and differently oriented stack layers. According to this embodiment, the article carriers 3 in a lower stack layer and the article carriers 3 in an upper stack layer are oriented differently, such that no column-like article carrier stacks are present. Hence, a stable article carrier stack is achieved also for smaller article carriers 3.

According to an embodiment shown in FIG. 1 a , the article carrier stack group 8 c comprises differently oriented article carriers 3 per stack layer, but equally oriented stack layers. According to this embodiment, the article carriers 3 in a lower stack layer and the article carriers 3 in an upper stack layer are oriented equally, such that, in turn, column-like article carrier stacks are present.

Usually, the article carriers 3 are delivered to the delivery zone 4 on delivery load carriers 17 a, 17 b, 17 c as an article carrier stack group 8 a, 8 b, 8 c. According to the statements above, the article carrier stack group 8 a, 8 b, 8 c can accordingly comprise the delivery load carrier 17 a, 17 b, 17 c. Even if the article carrier stack groups 8 a, 8 b are provided on delivery load carriers 17 a, 17 b, 17 c, a separation into article carriers 3 or article carrier stacks at a depalletizing station is not provided. The article carrier stack group 8 a, 8 b, 8 c is fed to the loading station essentially unchanged. In this context, essentially unchanged means that no depalletizing operation is carried out before loading an empty transport loading aid 7 a.

The delivery load carriers 17 a, 17 b, 17 c are preferably pallets which are used in practice in different designs and dimensions. For example, these are Euro pallets, industrial pallets, Düsseldorfer pallets. Of course, other pallets may also be used in the context of the invention. The Euro pallet has an outer dimension of 1,200 mm×800 mm. The industrial pallet has an outer dimension of 1,200 mm×1,000 mm. The Düsseldorfer pallet has an outer dimension of 800 mm×600 mm or 600 mm×400 mm.

FIG. 2 a shows the article carrier stack group 8 a on a Euro pallet and the article carrier stack group 8 b on an industrial pallet.

However, in general, it is also possible that the article carriers 3 are provided in the delivery zone 4 as an article carrier stack group 8 a, 8 b, 8 c without an additional delivery load carrier 17 a, 17 b, 17 c. According to this embodiment, the article carrier stack group 8 a, 8 b, 8 c comprises no additional delivery load carrier 17 a, 17 b, 17 c. Such an article carrier stack group 8 a, 8 b, 8 c is also fed to the loading station essentially unchanged. In this context, essentially unchanged means that no depalletizing operation is carried out before loading an empty transport loading aid 7 a.

FIGS. 1 a and 2 a show a possible embodiment in which a checking station is arranged in the delivery zone 4, comprising

-   -   one or multiple testing device(s) 20 for checking quality         features of the articles 2 in the article carriers 3,     -   an (automatically operated) conveying system, referred to by         number 21, for inwardly transporting an article carrier stack         group 8 a, 8 b, 8 c (with or without a delivery load carrier)         and outwardly transporting an article carrier stack group (with         or without a delivery load carrier),     -   a detection device 22 for identifying the article carrier stack         group 8 a, 8 b, 8 c, which is connected to the control system 16         (FIG. 1 a ) via a data line which is not shown in further         detail, and     -   an input and/or output device 23 for inputting data from the         check of the quality features, which is connected to the control         system 16 (FIG. 1 a ) via a data line which is not shown in         further detail.

According to the embodiment shown, the article carrier stack group 8 a, 8 b, 8 c is conveyed on the conveying system 21 for inwardly transporting an article carrier stack group 8 a, 8 b, 8 c and outwardly transporting an article carrier stack group 8 a, 8 b, 8 c on a delivery load carrier 17 a, 17 b, 17 c. The conveying system may comprise a roller conveyor, belt conveyor, chain conveyor and the like.

As shown in FIGS. 1 a and 2 a , a warehouse worker can be provided at the testing device 20 for checking quality features of the articles 2 in the article carriers 3. According to the embodiment shown, the testing device 20 is partially automated.

The detection device 22 for identifying the article carrier stack group 8 a, 8 b, 8 c can be formed by a mobile or stationary scanner. As is shown, for example, in FIG. 2 c , data carriers 25 a (RFID, barcode) can be applied to the article carriers 3 of the article carrier stack group 8 a, 8 b, 8 c and/or a data carrier 25 b (RFID, barcode) can be applied to the article carrier stack group 8 a, 8 b, 8 c.

According to the embodiment shown, the identification of the article carrier stack group 8 a, 8 b, 8 c is carried out at the testing device 20, although it can also be carried out before the testing device 20. This can be the case if the article carrier stack group 8 a, 8 b, 8 c is fed to an unpacking station before the testing device 20, where, for example, a packaging film (stretch film or shrink film) with which the article carrier stack group 8 a, 8 b, 8 c is packed, or a strapping tape with which the article carrier stack group 8 a, 8 b, 8 c is strapped, is removed. For example, a data carrier (RFID, barcode) can be placed on the packaging film, via which the article 2 or the article carrier 3 or the article carrier stack group 8 a, 8 b, 8 c is identified.

If the picking warehouse and method for storing and picking articles are used in the fresh food sector of groceries, where perishable articles 2, such as fruit and vegetables, quality features such as mold, damage and the like can be optically detected at the testing device 20.

At the input and/or output device 23, the result of the check of the quality features is detected, for example the warehouse staff can electronically detect the quality feature by inputting “quality okay” or “quality deficient”.

Moreover, the input of the number of removed article carriers 3 is also possible if individual article carriers 3 were removed from the article carrier stack group 8 a, 8 b, 8 c because these, for example, contain spoiled articles 2.

According to this embodiment, the input of data from the check of the quality features is carried out manually by the warehouse worker.

However, it is also possible that the check of the quality features is carried out automatically, for example by an image processing system by which images of the articles 2 are detected by a camera system and the images are compared with standard values of the articles 2 stored in a computer system by an image processing program, in order to perform an evaluation on the quality features from the comparison. According to this embodiment, the camera system forms an input device and the image processing program forms an output device.

The checking station comprises an automatically operated clamping and lifting device 24 along the conveying system for inwardly transporting an article carrier stack group 8 a, 8 b, 8 c and outwardly transporting an article carrier stack group 8 a, 8 b, 8 c, by means of which clamping and lifting device 24 the article carrier stack group 8 a, 8 b, 8 c can be separated into an upper article carrier stack 26 a and a lower article carrier stack 26 b and an access region is created between the upper article carrier stack 26 a and the lower article carrier stack 26 b, said access region allowing the removal of at least one article carrier 3 from the lower article carrier stack 26 b or of an article 2 from an article carrier 3 of the lower article carrier stack 266 b.

The clamping device comprises clamping jaws 27 a, 27 b movable relative to one another between an opened position and a clamping position by at least one drive device (which is not shown in further detail). In the clamping position, the clamping jaws 27 a, 27 b clamp the article carrier stack group 8 a, 8 b, 8 c along the circumference of at least one stack layer and/or article carrier layer and on at least two sides. The lifting device comprises a lifting frame 28 movable by at least one drive device (which is not shown in further detail) in the vertical direction relative to the conveying system 21, on which lifting frame 28 the clamping jaws 27 a, 27 b are mounted and by which the clamping jaws 27 a, 27 b can be moved from a lower height position into an upper height position. In the upper height position, the upper article carrier stack 26 a of the article carrier stack group 8 a, 8 b, 8 c is lifted off the lower article carrier stack 26 b of the article carrier stack group 8 a, 8 b, 8 c.

It should be noted at this point that the checking station is not obligatorily required in the embodiment above. If the checking station is not provided, there still is a detection device 22 for identifying the article carrier stack group 8 a, 8 b, 8 c which is connected to the control system 16 (FIG. 1 a ) via a data line which is not shown in further detail. In this case, the detection device 22 is provided, for example, in the unpacking station described above.

FIGS. 1 a, 2 b and 2 c show a possible embodiment in which a loading station with one or multiple automatically operated (schematically indicated) loading device(s) 10 is/are arranged in the delivery zone 4.

The loading device(s) 10 is/are preferably connected to an automatically operated conveying system, referred to by number 30, for inward transport of article carrier stack groups 8 a, 8 b, 8 c. The conveying system may comprise a roller conveyor, belt conveyor, chain conveyor and the like.

If the optional checking station is provided, the loading device(s) 10 and the testing device (s) are additionally connected, in terms of conveyance, via a conveying system, referred to by number 31, for inwardly transporting article carrier stack groups 8 a, 8 b, 8 c (goods-in units). In the embodiment shown, the conveying system comprises a transport trolley movable along a guideway in x direction. However, the conveying system 31 may also comprise a roller conveyor, belt conveyor, chain conveyor and the like.

As will be described below, the loading station comprises one or multiple automatically operated (schematically indicated) loading device(s) 10 for loading empty transport loading aids 7 a each with a (preferably unpacked) article carrier stack group 8 a.

The loading device 10 comprises a service location 40 for an article carrier stack group 8 a, 8 b, 8 c, a service location 41 for an empty transport loading aid 7 a and a transfer device 42 for transferring the article carrier stack group 8 a, 8 b, 8 c from the service location 40 onto an empty transport loading aid 7 a, which is provided at the service location 41.

Specifically, the automatically operated loading device 10 comprises a transfer device 42 movable relative to the service location 40 in order to move an article carrier stack group 8 a, 8 b, 8 c provided on the service location 40 in a transfer position to the transport loading aid 7 a “unchanged”.

Even though, in the depicted embodiment, the loading station is shown having a single loading device 10 for reasons of clarity, the number of loading devices 10 may vary depending on the required picking performance. For example, the loading station and/or the picking warehouse 1 may have a second loading device 10, third loading device 10 etc. These loading devices 10 are preferably constructed identically.

It also proves advantageous if the loading station has a separate buffer surface 43 near the one or near the multiple loading device(s) 10. However, in principle, the loading station may also comprise only one buffer surface 43. The buffer surface 43 is preferably formed on a base of the picking warehouse 1.

This way, it is possible that the empty transport loading aid(s) 7 a are buffered on the buffer surface 43, near the loading device(s) 10, and are transported as needed to the respective service location 41 of the loading device(s) 10 over a short distance by means of the transport vehicles 9.

According to the invention, consequently, the loading station i) either comprises one or multiple automatically operated loading device(s) 10 or ii) one or multiple automatically operated loading device(s) 10 and a buffer surface 43 close to the loading device(s) 10. The loading device 10 is embodied for loading one of the empty transport loading aids 7 a with an article carrier stack group 8 a, 8 b, 8 c (with or without delivery load carrier 17 a, 17 b, 17 c). The empty transport loading aid 7 a is provided at the automatically operated loading device 10 for loading with an essentially unchanged article carrier stack group 8 a, 8 b, 8 c (with or without delivery load carrier 17 a, 17 b, 17 c).

As depicted in FIG. 1 a , an empty transport loading aid 7 a may be transported to the service location 41 transports by means of an autonomously movable, driverless transport vehicle 9 and be placed there. While loading the empty transport loading aid 7 a, said transport vehicle 9 may be used for other transport purposes.

However, in principle, it is also possible that the autonomously movable, driverless transport vehicle 9 transports an empty transport loading aid 7 a to the service location 41 and places it there, however, remains at the service location 41 while the empty transport loading aid 7 a is loaded. If an empty transport loading aids transport loading aid 7 a is already placed at the service location 41 or if the empty transport loading aid 7 a is currently being loaded, the empty transport loading aid 7 a can be buffered on the buffer surface 43 provided near the loading device 10.

After being loaded with at least one article carrier stack group 8 a, 8 b, 8 c, the (now loaded) transport loading aid 7 b is transported from the loading station, in particular from the loading device 10 or the loading devices 10, to the storage zone 5 by means of the autonomously movable, driverless transport vehicle 9 and are placed on a storage surface 45 in the storage zone 5. The storage surface 45 is preferably formed on a base of the picking warehouse 1. As will be described below, by means of the autonomously movable, driverless transport vehicles 9, also at the unloading station, not completely unloaded (partially loaded) “opened” transport loading aids 7 c are transported from the unloading station back to the storage zone 5 and placed on the storage surface 45 in the storage zone 5.

FIG. 2 c shows a possible embodiment of an automatically operated loading device 10. The loading device 10 is preferably connected to the automatically operated conveying system, referred to by number 30, for inward transport of article carrier stack groups 8 a, 8 b, 8 c (goods-in units).

The loading device 10 comprises the service location 40 for an article carrier stack group 8 a, 8 b, 8 c, the service location 41 for an empty transport loading aid 7 a (or a loaded transport loading aid 7 b after loading) and the transfer device 42 for transferring the article carrier stack group 8 a, 8 b, 8 c from the service location 40 onto an empty transport loading aid 7 a, which is provided at the service location 41.

Specifically, the service location 40 for an article carrier stack group 8 a, 8 b, 8 c is formed on a conveying system, referred to by number 50, for example a multiple track conveyor, which connects to the conveying system, referred to by number 30, and provides the article carrier stack group 8 a, 8 b, 8 c in the transfer position on the service location 40.

The transfer device 42 comprises telescopic forks 51, see FIG. 2 c , movable in the vertical direction relative to the service location 40 between a lowered starting position and a raised receiving position and in the horizontal direction relative to the service location 40 between a retracted initial position and a projecting transfer position.

In FIG. 2 b an article carrier stack group 8 a, 8 b, 8 c previously transferred onto the telescopic fork 51 is just being transferred onto the empty transport loading aid 7 a. In FIG. 2 c , the telescopic forks 51 are in the projecting transfer position and the article carrier stack group 8 a, 8 b, 8 c is located on the transport loading aid 7 a.

Irrespectively of how the loading device 10 is designed, it can be advantageous if the service location 41 comprises tilting and back tilting devices 52 by which the empty transport loading aid 7 a can be tilted such prior to loading that a base wall part 171 is moved into an essentially horizontal transport plane (take-over plane). Such an embodiment can be applied if the transport loading aid 7 a, 7 b, 7 c is embodied according to FIGS. 4 a to 4 c , 6 and has no horizontal base wall part 171. The tilting and back tilting devices 52 can each comprise a placing plate 53 on which feet 175 (three or four feet 175) of the transport loading aid 7 a, 7 b, 7 c are placed. Three or four tilting and back tilting devices 52 are provided. Hence, loading the transport loading aid 7 a, 7 b, 7 c can be simplified if these are embodied according to FIGS. 4 a to 4 c , 6.

As can be seen in FIGS. 1 b and 2 d , an unloading station with one or multiple automatically operated unloading device(s) 11 is arranged in the order processing zone 6, by means of which unloading device 11 individual article carriers 3 or article carrier stack can be transferred from the transport loading aid 7 b, 7 c to a target loading aid 70. According to the embodiment shown, the one or multiple automatically operated unloading device(s) 11 at the same time forms one or multiple automatically operated reloading device(s) and/or picking device(s) for assembling the article carriers 3 on the target loading aid(s) 70 according to the picking order.

As described in the following, the unloading station comprises the at least one automatically operated unloading device 11 (schematically adumbrated). Even though, in the depicted embodiment, the unloading station is shown having a single unloading device 11 for reasons of clarity, the number of unloading devices 11 may vary depending on the required picking performance. For example, the unloading station and/or the picking warehouse 1 can comprise a second unloading device 11, third unloading device 11, and so on. These unloading devices 11 are preferably constructed identically.

The schematically shown embodiment of the automatically operated unloading device 11 comprises a first service location 71 a for the loaded first transport loading aid 7 b, 7 c, an (optional) second service location 71 b for the loaded second transport loading aid 7 b, 7 c and a transfer device 72 movable relative to the service location 71 a, 71 b for unloading the transport loading aid 7 a, 7 b provided at the service location 71 a, 71 b. If the unloading station has more than one automatically operated unloading devices 11, each unloading device 11 comprises a first service location 71 a for the loaded first transport loading aid 7 b, 7 c, and an (optional) second service location 71 b for the loaded second transport loading aid 7 b, 7 c and a transfer device 72 movable relative to the service location 71 a, 71 b for unloading the transport loading aid 7 b, 7 c provided at the service location 71 a, 71 b.

It also proves advantageous if the unloading station has at least one separate buffer surface 73 near the unloading device 11 or near each unloading device 11. In the depicted embodiment, the unloading device 11 is assigned one buffer surface 73 per service location 71 a, 71 b. However, in principle, the unloading station may also comprise only one buffer surface 73. The buffer surface 73 is preferably formed on a base of the picking warehouse 1. This way, it is possible that the loaded transport loading aid(s) 7 b, 7 c are buffered on the buffer surface 73, near the unloading device(s) 11, and are transported as needed to the respective service location 71 a, 71 b of the unloading device(s) 11 over a short distance by means of the transport vehicles 9.

The unloading station can also comprise one or multiple waiting zone(s) 74 (shown in FIG. 2 d ). A transport loading aid 7 c can be placed at the waiting zone 74 or at the waiting zones 74 after removal of at least one article carrier 3, if not all article carriers 3 have been removed from the mentioned transport loading aid 7 c and if these article carriers 3 are needed at the mentioned unloading device 11 or one of the unloading devices 11 for an already advised picking order. However, in principle, the loading station may also comprise only one waiting zone 74. This way, it is possible that the partially unloaded transport loading aid(s) 7 c are buffered in the waiting zone 74, near the unloading device(s) 11, and are transported as needed to the respective service location 71 a, 71 b of the unloading device(s) 11 over a short distance by means of the transport vehicles 9.

The unloading device 11 shown in further detail in FIG. 2 d comprises a gantry robot according to a first embodiment. Gantry robots are understood to be industrial robots, which in their base axes are constructed from linear axles. An area gantry is used for loading.

The gantry robot comprises

-   -   i) vertical standing members, longitudinal beams and transverse         beams, which are connected to one another, forming a support         construction 80     -   ii) a first gantry slide 81 mounted on the support structure 80         and horizontally movable in a first direction (x-direction)         along a guide assembly (which is arranged on one of the         longitudinal beams) via a first drive device,     -   iii) a gantry arm 82 affixed to the first gantry slide 81 and         movable therewith in the first direction (x-direction), and     -   iv) a second gantry slide 83 mounted on the gantry arm 82 and         vertically movable in a second direction (z-direction) along a         guide assembly via a second drive device, and     -   v) a third gantry slide 84 arranged on the second gantry slide         83 and horizontally movable in a third direction (y-direction)         along a guide assembly via a third drive device, and     -   vi) the transfer device 72, which is arranged on the third         gantry slide 84 and is mounted on the third gantry slide 84 so         as to be rotatable about a vertical axis.

The shown gantry robot proves advantageous if the available ceiling height is low.

In the course of the unloading movement, the article carrier 3, partial article carrier stack or article carrier stack is picked up from the transport loading aid 7 b, 7 c, which is provided at the service location 71 a, 71 b, by the transfer device 72, and subsequently transferred onto a target loading aid, 70, 170.

In this context, it can be advantageous if the picking warehouse 1 uses stack loading aids, which comprise first stack loading aids 100 a (see FIGS. 7 a to 7 c, 8 a, 8 b , 9) which are loaded with the target loading aid 70, for example a pallet.

If instead of the first stack loading aids 100 a second stack loading aids 100 b (see FIG. 10 ) are used in the picking warehouse 1, the second stack loading aid 100 b forms the target loading aid 170. In this case, a lading station described in the following may be omitted. Contrary to the above-mentioned embodiment, in which the first stack loading aid 100 a is equipped with the target loading aid 70, an additional target loading aid 70 is not provided in this embodiment.

If the picking warehouse 1 comprises the first stack loading aids 100 a, the article carrier 3, partial article carrier stack or article carrier stack is picked up by the transfer device 72 from the transport loading aid 7 b, 7 c, which is provided at the service location 71 a, 71 b, and subsequently transferred onto the target loading aid 70.

If the picking warehouse 1 comprises the second stack loading aids 100 b, the article carrier 3, partial article carrier stack or article carrier stack is picked up by the transfer device 72 from the transport loading aid 7 b, 7 c, which is provided at the service location 71 a, 71 b, and subsequently transferred onto the target loading aid 170.

The transfer device 72 may for example be formed by a gripping system. The gripping system may comprise for example a base body, a vacuum suction unit with at least one suction gripper or multiple suction grippers arranged on top of one another and/or next to one another and a support base movably mounted on the base body. Unloading the transport loading aid 7 b, 7 c with this gripping system is carried out such that an article carrier 3 or a partial article carrier stack is first lifted on one side by the suction unit so that a gap opens between the top article carrier 3 and the one below it and the support base is then pushed in under the article carrier 3 lifted on one side or the partial article carrier stack lifted on one side by means of the suction unit in a horizontal direction so as to accommodate said article carrier 3 or partial article carrier stack. Such a gripping system thus makes it possible to unload an individual article carrier 3 but also a partial article carrier stack. In principle, it is also conceivable that the number of suction grippers arranged on top of one another is selected such that an entire article carrier stack can be lifted on one side and the support base can accommodate the entire article carrier stack.

Moreover, the gripping system may also be configured such that a gripping unit acts according to the positive engagement principle and/or friction principle and grips an individual article carrier 3, partial article carrier stack or article carrier stack in a positively engaging or friction-type manner.

According to a second embodiment, which is not depicted, the unloading device 11 may comprise a jointed-arm robot. The jointed-arm robot has a gripping system which is movable relative to a robot base and by means of which an individual article carrier 3, a partial article carrier stack or an article carrier stack 8 is removed from the transport loading aid 7 b, 7 c and then transferred onto a target loading aid 70, 170.

The schematically shown embodiment of the automatically operated unloading device 11 comprises a service location 91 a for a first stack loading aid 100 a (or second stack loading aid 100 b) or multiple service locations 91 a, 91 b for first stack loading aids 100 a (or second stack loading aids 100 b) and the transfer device 72 that is movable relative to the service location 91 a, 91 b for loading the transport loading aid 70, 170 provided at the service location 91 a, 91 b.

If the unloading station has more than one automatically operated unloading device 11, each unloading device 11 comprises a service location 91 a for a target loading aid 70, 170 or multiple service locations 91 a, 91 b for target loading aids 70, 170 and the transfer device 72 that is movable relative to the service location 91 a, 91 b for loading the transport loading aid 70, 170 provided at the service location 91 a, 91 b.

As described above, the (additional) target loading aid 70 with the first stack loading aid 100 a may be provided at the service location 91 a, 91 b or the target loading aid 170 (which is formed by the second stack loading aid 100 b) may be provided at the service location 91 a, 91 b.

It also proves advantageous if the unloading station has at least one separate buffer surface 92 near the unloading device 11 or near each unloading device 11. In the depicted embodiment, the unloading device 11 is assigned one buffer surface 92 per service location 91 a, 91 b. However, in principle, the unloading station may also comprise only one buffer surface 92. The buffer surface 92 is preferably formed on a base of the picking warehouse 1. This way, it is possible that the empty target loading aids 70 with the first stack loading aid 100 a and the target loading aid 170 with the second stack loading aid 100 b are buffered on the buffer surface 92, near the unloading device(s) 11, and are transported as needed to the respective service location 91 a, 91 b of the unloading device(s) 11 over a short distance by means of the transport vehicles 9.

According to the shown embodiment, the target loading aids 70 with the first stack loading aid 100 a and the target loading aid 170 with the second stack loading aid 100 b are transported to the respective service location 91 a, 91 b of the unloading device(s) 11 and are transported away from the respective service location 91 a, 91 b of the unloading device(s) 11 by means of the transport vehicles 9.

As evident in FIGS. 1 b and 2 e , the unloading station may additionally comprise one or multiple unloading device(s) 100 (schematically adumbrated) operated in a partially automated manner, on which the article carriers 3 or article carrier stacks are transferred from a transport loading aid 7 b, 7 c onto one or multiple target loading aids 70, 170. It is possible for only one single unloading device 100 to be provided at which the article carriers 3 or article carrier stacks are transferred from a transport loading aid 7 b, 7 c onto one or multiple target loading aids 70, 170. The number of unloading devices 100 may vary depending on the required picking performance. These unloading devices 100 are preferably constructed identically.

According to the embodiment shown, the one or multiple partially automated unloading device(s) 100 at the same time forms one or multiple reloading device(s) and/or picking device(s) for assembling the article carriers 3 on the target loading aid(s) 70 according to the picking order.

At the unloading device(s) 100, article carriers 3 are picked, which cannot be automatically picked at the unloading device(s) 11 because the article carriers 3 have a base surface smaller than 300 mm×400 mm or the article carriers 3 have a dimensional stability that is too low to be manipulated automatically.

The partially automated unloading device(s) 100 each comprise a first service location 101 a for a transport loading aid 7 b, 7 c, a second service location 101 b for a first stack loading aid 100 a (or second stack loading aid 100 b) and a working area 102 for a picker/a warehouse worker (not depicted for reasons of clarity). The working area 102 may also comprise a working surface 103 with wheels and the like in order to make an ergonomic manipulation of the article carriers 3 possible. The first service location 101 a and the second service location 101 b are arranged so as to be located opposite one another. Additionally, the unloading device 100 may comprise an input and/or output device (not depicted), by means of which picking instructions for the picker are output and at which picking commands are entered by the picker.

As described above, the (additional) target loading aid 70 with the first stack loading aid 100 a may be provided at the service location 101 b or the target loading aid 170 (which is formed by the second stack loading aid 100 b) may be provided at the service location 101 b.

While, according to the embodiment described above, an automated picking operation takes place at the unloading device(s) 11, a manual picking operation is carried out at the unloading device(s) 100.

In the mentioned context, “partially automated” means that transporting transport loading aids 7 b, 7 c to the unloading device 100, transporting transport loading aids 7 a, 7 c away from the unloading device 100, transporting first stack loading aids 100 a (or second stack loading aid 100 b) to the unloading device 100, transporting first stack loading aids 100 a (or second stack loading aid 100 b) away from the unloading device 100 is carried out automatically and picking is carried out manually by a picker.

The transport loading aid 7 b, 7 c is transported to the first service location 101 a by means of the transport vehicle 9 and transferred to said service location 101 a so as to provide the transport loading aid 7 b, 7 c at the service location 101 a, or transferred from the first service location 101 a onto the transport vehicle 9 so as to transport the transport loading aid 7 a, 7 c away from the service location 101 a.

Likewise, the first stack loading aid 100 a (or second stack loading aid 100 b) is transported by means of the transport vehicle 9 to the second service location 101 b and transferred onto it so as to provide the first stack loading aid 100 a (or second stack loading aid 100 b) at the service location 101 b, it is transferred from the second service location 101 b onto the transport vehicle 9 so as to transport the first stack loading aid 100 a (or second stack loading aid 100 b) away from the service location 101 b.

It also proves advantageous if the unloading station has at least one separate buffer surface 104 a for the transport loading aid 7 b, 7 c and at least one separate buffer surface 104 b for the first stack loading aid 100 a (or second stack loading aid 100 b) near the unloading device 100 or near each unloading device 100. In the depicted embodiment, the unloading device 100 is assigned one buffer surface 104 a per service location 101 a or one buffer surface 104 b per service location 101 b. However, in principle, the unloading station may also comprise only one buffer surface 104 a or buffer surface 104 b. The buffer surface 104 a, 104 b is preferably formed on a base of the picking warehouse 1. This way, it is possible that the loaded transport loading aid(s) 7 b, 7 c and the first stack loading aid 100 a (the second stack loading aid 100 b) are buffered on the buffer surface 104 a, 104 b, near the unloading device(s) 100, and are transported as needed to the respective service location 101 a, 101 b of the unloading device(s) 100 over a short distance by means of the transport vehicles 9.

According to the depicted embodiment, the first service location 101 a is formed on a lifting platform 105 a, on which the transport loading aid 7 b, 7 c is placed and the article carrier stack group 8 a, 8 b, 8 c can be lifted to a service level in order to make ergonomic working possible, and the second service location 101 b is formed on a lifting platform 105 b, on which the first stack loading aid 100 a (or second stack loading aid 100 b) can be placed and the target loading aid 70, 170 (of the target loading aid 70, 170 is not loaded yet) or an order stack 106 (if the target loading aid 70, 170 has already been loaded by means of one or multiple automatically operated loading device(s) 11) can be lifted to a service level in order to make ergonomic working possible.

It should be noted at this point that irrespectively of how the unloading device 11, 100 is embodied, it can be advantageous if the service location 71 a, 71 b, 101 a can also comprise the tilting and back tilting device 52 described above, by which the transport loading aid 7 a, 7 b, 7 c can be tilted such prior to its unloading that the base wall part 171 is moved into an essentially horizontal transport plane (take-over plane). Such an embodiment can be applied if the transport loading aid 7 b, 7 c is embodied according to FIGS. 4 a to 4 c , 6 and has no horizontal base wall part 171. The tilting and back tilting devices 52 can each comprise a placing plate 53 on which the feet 175 (three or four feet 174) of the transport loading aid 7 b, 7 c are placed. Three or four tilting and back tilting devices 52 are provided. Hence, unloading the transport loading aid 7 b, 7 c can also be simplified if these are embodied according to FIGS. 4 a to 4 c , 6.

Likewise, it can be advantageous if the service location 91 a, 91 b, 101 b can also comprise the tilting and back tilting device 52 described above, by which the first target loading aid 70 or the second target loading aid 170 (and/or the first stack loading aid 100 a or the second stack loading aid 100 b) can be tilted such prior to their loading that the base wall part 206 is moved into an essentially horizontal transport plane (take-over plane).

Such an embodiment can be applied if the first target loading aid 70 or the second target loading aid 170 is embodied according to FIGS. 7 a to 7 c , 9 and has no horizontal base wall part 206. The tilting and back tilting devices 52 can each comprise a placing plate 53 on which the feet 209 (three or four feet 209) of the first target loading aid 70 or the second target loading aid 170 are placed. Three or four tilting and back tilting devices 52 are provided. Hence, loading the first target loading aid 70 or the second target loading aid 170 can be simplified if these are embodied according to FIGS. 7 a to 7 c , 9.

FIGS. 1 a and 2 b show a lading station with one or multiple automatically operated lading device(s) 110, which the picking warehouse 1 may comprise and which make lading the first stack loading aid 100 a by means of a target loading aid 70 possible as long as a first stack loading aid 100 a is used in the picking warehouse 1. The target loading aid 70 is placed on the base (FIGS. 7 a to 7 c, 8 a , 9) of the first stack loading aid 100 a.

The lading device(s) 110 each comprise a service location 111 for an empty first stack loading aid 100 a and a transfer device 112 for loading the stack loading aid 100 a provided on the service location 111, which transfer device 172 is movable relative to the service location 111.

It also proves advantageous if the lading station has at least one separate buffer surface 113 near the lading device 110 or near each lading device 110. In the depicted embodiment, the lading device 110 is assigned one buffer surface 113 per service location 111. However, in principle, the lading station may also comprise only one buffer surface 113. The buffer surface 113 is preferably formed on a base of the picking warehouse 1.

An empty first stack loading aid 100 a is transported to the lading station by means of an autonomously movable, driverless transport vehicle 9 and provided at the lading device 110 or on a buffer surface 113. After being laded by means of a target loading aid 70, the stack loading aid 100 a is transported from the lading station, in particular from the lading device 110, to the unloading station by means of an autonomously movable, driverless transport vehicle 9.

FIGS. 1 a and 2 b also show an order stack load securing station with one or multiple automatically operated load securing device(s) 120, which the picking warehouse 1 may comprise and which makes securing the load of an order stack 106 by means of a securing means 121 possible.

The load securing device(s) 120 each comprise a service location 122 for a loaded first stack loading aid 100 a (or a loaded second stack loading aid 100 b), a target loading aid lifting device and a securing means wrapping tool or a securing means strapping tool. The target loading aid lifting device comprises a vertically adjustable lift frame 123 and telescopic forks 124 mounted thereon, the latter being movable between a retracted initial position and a protruding receiving position.

It should be noted that in the receiving position, the telescopic forks 124, on the one hand, receive a target loading aid 70 together with the order stack 106 if no stack loading aids are used, or, if the first stack loading aid 100 a is used (with additional target loading aid 70), and on the other hand, only the order stack 106 if the second stack loading aid 100 b is used (without additional target loading aid 70), wherein the target loading aid 70 together with the order stack 106 or the order stack 106 may be lifted/lowered with a lifting movement of the lift frame 123.

It also proves advantageous if the order stack load securing station has at least one separate buffer surface 125 near the load securing device 120 or near each load securing device 120. In the depicted embodiment, the load securing device 120 is assigned one buffer surface 125 per service location 122. However, in principle, the order stack load securing station may also comprise only one buffer surface 125. The buffer surface 125 is preferably formed on a base of the picking warehouse 1.

According to the embodiment shown, the load securing device 120 comprises a wrapping tool, which wraps a thermoplastic film in a force-fit manner in the circumferential direction around the order stack 106 while the order stack 106 is lifted from the first stack loading aid 100 a or the second stack loading aid 100 b by means of the target loading aid lifting device. The thermoplastic film constitutes the securing means 121.

In the alternative, a strapping tool may also be used in the load securing device 120, which is configured to fasten at least one sealing strap in a substantially horizontal direction circumferentially at the order stack 106 while the order stack 106 is in the load securing device 120. The sealing strap constitutes the securing means 121.

A first stack loading aid 100 a loaded with the (finished) order stack 106 (or second stack loading aid 100 b) is transported to the order stack load securing station by means of an autonomously movable, driverless transport vehicle 9 and provided at the load securing device 120 or on a buffer surface 125.

After the order stack 106 has been removed from the first stack loading aid 100 a, the empty first stack loading aid 100 a may be transported by means of an autonomously movable, driverless transport vehicle 9 from the order stack load securing station, in particular from the load securing device 120 to the lading station.

If the stack loading aids comprise the second stack loading aid 100 b, after the order stack 106 has been removed from the second stack loading aid 100 b, the empty second stack loading aid 100 b may be transported by means of an autonomously movable, driverless transport vehicle 9 from the order stack load securing station, in particular from the load securing device 120 to the unloading station.

FIG. 3 a shows a first embodiment of one of the autonomously movable, steerable transport vehicles 9 of a driverless transport system. The transport vehicles 9 are controlled by a superordinate main computer for transporting transport loading aids 7 a, 7 b, 7 c, for example

-   -   to transport empty transport loading aids 7 a to the loading         station and to provide one of the empty transport loading aids 7         a either at the automatically operated loading device 10 or on         the buffer surface 43 close to the loading device 10, and     -   to transport the transport loading aid 7 b loaded with the         article carrier stack group 8 a, 8 b, 8 c from the loading         station to the storage zone 5, and     -   to transport one or multiple transport loading aid(s) 7 b, 7 c         containing the article carriers 3 required for a picking order         from the storage zone 5 to an unloading station and to provide         said transport loading aid(s) 7 b, 7 c either at one or multiple         automatically operated unloading device(s) 11 or on a buffer         surface 73 close to the unloading device(s) 11.

The control system 16 may comprise said main computer.

The transport vehicle 9 (mobile robot) comprises a chassis 150 with a drive unit and a loading platform 151 arranged on the chassis 150 for picking up/discharging/transporting a mobile (non-stationary) transport loading aid 7 a, 7 b, 7 c and/or a mobile (non-stationary) stack loading aid 100 a and/or a mobile (non-stationary) stack loading aid 100 b. The drive unit comprises wheels 152, 153 rotatably mounted on the chassis 150, of which at least one of the wheels 152 is coupled with a drive (not depicted) and at least one of the wheels 153 can be steered. It is also possible for both wheels 152 to be coupled with the drive and be driven by it. However, the transport vehicle 9 may also comprise four wheels, of which two wheels can be steered.

According to the shown embodiment, the loading platform 151 is mounted on the chassis 150 so as to be adjustable between an initial position (represented in continuous lines) and a transport position (represented in dashed lines). In the initial position, a transport loading aid 7 a, 7 b, 7 c placed on the base of the picking warehouse 1, in particular on a buffer surface, the storage surface, in the waiting zone or on the service location, or a stack loading aid 100 a, 100 b placed on the buffer surface or on the service location, can be driven under, in order to receive said transport loading aid 7 a, 7 b, 7 b, or said stack loading aid 100 a, 100 b, on the loading platform 151. If the loading platform 151 is adjusted out of the initial position in the direction of the transport position, a transport loading aid 7 a, 7 b, 7 b or stack loading aid 100 a, 100 b placed on the base can be lifted and subsequently transported. In the transport position, the transport loading aid 7 a, 7 b, 7 b or stack loading aid 100 a, 100 b is lifted off the base of the picking warehouse 1 and it can be transported between the delivery zone 4, storage zone 5 and the order processing zone 6. If the loading platform 151 is adjusted out of the transport position in the direction of the initial position, the transport loading aid 7 a, 7 b, 7 b or stack loading aid 100 a, 100 b can be placed on the base.

The transport vehicle 9 further comprises a drive control 154, represented schematically in dashed lines, for receiving commands from the superordinate main computer and for controlling/regulating the movements of the autonomous transport vehicle 9. The drive control 154 may also comprise means for (wirelessly) transfer data to and from the transport vehicle 9. Finally, the transport vehicle 9 comprises sensors, which are not shown, for detecting the environment of the autonomous transport vehicle 9 and for spatial orientation. The drive of the drive unit and the sensors are connected to the drive control 154.

FIG. 3 b shows a second embodiment of one of the autonomously movable, steerable transport vehicles 90 of a driverless transport system. The transport vehicle 90 differs from the first embodiment according to FIG. 3 a in that a transport safeguard 160 is additionally provided. The transport safeguard 160 can serve to stabilize the position of an article carrier stack group 8 a, 8 b, 8 c when it is accommodated on the mobile transport loading aid 7 a, 7 b, 7 c, transported and/or unloaded. The transport safeguard 160 can serve to stabilize the position of an order stack 106 when it is accommodated on the mobile stack loading aid 100 a, 100 b, transported and/or loaded.

Specifically, the transport vehicle 90 comprises the loading platform 151 described above and side walls arranged adjacent thereto. The side walls form the transport safeguard 160 and comprise a first side wall 161 a and a second side wall 161 b. Preferably, the transport safeguard 160 comprises merely the first side wall 161 a and the second side wall 161 b. The first side wall 161 a and the second side wall 161 b enclose an angle, in particular a right angle.

According to a first embodiment shown in FIGS. 3 b and 6 and/or FIGS. 3 b and 9, the first side wall 161 a and the second side wall 161 b can each vertically project from a loading plane receiving the loading platform 151 at a right angle.

According to an embodiment which is not shown, the first side wall 161 a and the second side wall 161 b can each vertically project from a loading plane receiving the loading platform 151 at an angle greater than 90°. Such an embodiment can be advantageous if the transport loading aid (without side walls) or the stack loading aid (without side walls) have a base wall part which extends inclined downwardly by a first inclination angle (α₁) with respect to a horizontal plane (i.e. loading plane) in the direction towards the first side wall 161 a as well as inclined downwardly by a second inclination angle (α₂) with respect to a horizontal plane (i.e. loading plane) in the direction towards the second side wall 161 b. As soon as the transport loading aid (without side walls) or the stack loading aid (without side walls) was received on the loading platform 151, the first side wall 161 a and the second side wall 161 b are each oriented perpendicularly to the base wall part.

FIGS. 4 a to 4 c show a first embodiment of a transport loading aid 7 a, 7 b, 7 c, as can be used in the shown picking warehouse 1, specifically the empty transport loading aid 7 a.

The transport loading aid 7 a, 7 b, 7 c comprises a transport rack and a base, wherein the transport rack forms a transport frame 172, against which the loading platform 151 of the transport vehicle 9 can be placed, and wherein the base forms a base wall part 171 on which the article carrier stack group 8 a, 8 b, 8 c (with or without delivery load carrier 17 a, 17 b, 17 c) can be placed.

According to the embodiment shown, the transport loading aid 7 a, 7 b, 7 c additionally comprises side walls which form a transport safeguard 174 for stabilizing the position of the article carrier stack group 8 a, 8 b, 8 c when it is placed on the base wall part 171, and comprise a first side wall 173 a and a second side wall 173 b. The first side wall 173 a and second side wall 173 b are connected to the base wall part 171. Preferably, the transport safeguard 174 comprises merely the first side wall 173 a and the second side wall 173 b. Preferably, the first side wall 173 a and second side wall 173 b enclose an angle, in particular a right angle.

Additionally, the transport loading aid 7 a, 7 b, 7 c may comprise feet 175 which are affixed to the transport rack. The transport loading aid 7 a, 7 b, 7 c is placed on the base or a conveying system (as will be described below) of the picking warehouse 1 via the feet 175. In an embodiment that is not shown, wheels instead of feet 175 may also be provided on the transport rack.

It can prove advantageous if the base wall part 171 is both inclined downwardly at a first inclination angle (α₁) with respect to a horizontal plane spanned between the first side wall 173 a and the second side wall 173 b in the direction towards the first side wall 173 a, and inclined downwardly at a second inclination angle (α₂) with respect to a horizontal plane spanned between the first side wall 173 a and the second side wall 173 b in the direction towards the second side wall 173 b. The first side wall 173 a and second side wall 173 b are oriented perpendicularly to the base wall part 171. The inclination angles α₁, α₂ preferably each amount to between 3° and 6°.

The base wall part 171 is preferably adapted in base area to the dimensions of the article carrier stack group 8 a, 8 b, 8 c and/or the delivery load carriers 17 a, 17 b, 17 c described above. To increase flexibility in the use of the transport loading aid 7 a, 7 b, 7 c, the base surface can be adapted to the dimension of the largest article carrier stack group 8 a, 8 b, 8 c and/or of the largest delivery load carrier 17 a, 17 b, 17 c. However, the transport loading aid 7 a, 7 b, 7 c, can also be adapted to the dimension of one single article carrier stack group 8 a, 8 b, 8 c and/or of one single delivery load carrier 17 a, 17 b, 17 c.

FIG. 5 shows a second embodiment of a transport loading aid 7 a, 7 b, 7 c, as can be used in the shown picking warehouse 1, specifically the empty transport loading aid 7 a.

The transport loading aid 7 a, 7 b, 7 c comprises a transport rack and a base, wherein the transport rack forms a transport frame 172, against which the loading platform 151 of the transport vehicle 9 can be placed, and wherein the base forms a base wall part 171 on which the article carrier stack group 8 a, 8 b, 8 c (with or without delivery load carrier 17 a, 17 b, 17 c) can be placed.

According to the embodiment shown, the transport loading aid 7 a, 7 b, 7 c additionally comprises side walls which form a transport safeguard 174 for stabilizing the position of the article carrier stack group 8 a, 8 b, 8 c when it is placed on the base wall part 171, and comprise a first side wall 173 a and a second side wall 173 b. The first side wall 173 a and second side wall 173 b are connected to the base wall part 171. Preferably, the transport safeguard 174 comprises merely the first side wall 173 a and the second side wall 173 b. Preferably, the first side wall 173 a and second side wall 173 b enclose an angle, in particular a right angle.

Additionally, the transport loading aid 7 a, 7 b, 7 c may comprise feet 175 which are affixed to the transport rack. The transport loading aid 7 a, 7 b, 7 c is placed on the base of the picking warehouse 1 via the feet 175. In an embodiment that is not shown, wheels instead of feet 175 may also be provided on the transport rack.

However, as opposed to the first embodiment, the base wall part 171, which was described in further detail above, is oriented horizontally and extends in a horizontal plane spanned between the first side wall 173 a and the second side wall 173 b. The first side wall 173 a and the second side wall 173 b are oriented perpendicularly to the base wall part 171 and connected to the base wall part 171.

FIG. 6 shows a third embodiment of a transport loading aid 7 d, as can be used in the shown picking warehouse 1, specifically an empty transport loading aid 7 d.

The transport loading aid 7 d comprises a transport rack and a base, wherein the transport rack forms a transport frame 172, against which the loading platform 151 of the transport vehicle 9 can be placed, and wherein the base forms a base wall part 171 on which the article carrier stack group 8 a, 8 b, 8 c (with or without delivery load carrier 17 a, 17 b, 17 c) can be placed. According to the embodiment shown, the transport loading aid 7 d comprises no additional side walls; these are provided by the transport vehicle 90, as is described above in FIG. 3 b.

Additionally, the transport loading aid 7 d may comprise feet 175 which are affixed to the transport rack. The transport loading aid 7 d is placed on the base or a conveying system (as will be described below) of the picking warehouse 1 via the feet 175. In an embodiment that is not shown, wheels instead of feet 175 may also be provided on the transport rack.

In the embodiment shown, the base wall part 171, which was described in further detail above, is oriented horizontally, although it is also possible that said base wall part 171 extends both inclined downwardly by a first inclination angle (α₁) with respect to a horizontal plane in the direction of a first longitudinal edge 176 a of said base wall part 171 and inclined downwardly by a second inclination angle (α₂) with respect to a horizontal plane in the direction of a second longitudinal edge 176 b of said base wall part 171, as indicated in dashed lines in FIG. 6 . The inclination angles α₁, α₂ preferably each amount to between 3° and 6°.

FIGS. 7 a bis 7 c, 8 a, 8 b and 9 show different embodiments of a first stack loading aid 100 a, as can be used in the picking warehouse 1 shown. The target loading aid 70 is shown merely in FIG. 7 a for the sake of clarity.

The first stack loading aid 100 a comprises a transport rack and a base, wherein the transport rack forms a transport frame 205, against which the loading platform 151 of the transport vehicle 9 can be placed, and wherein the base forms a base wall part 206 on which the target loading aid 70 with the order stack 106 can be placed.

According to the embodiment shown, the first stack loading aid 100 a additionally comprises side walls which form a transport safeguard 207 for stabilizing the position of the order stack 106 when it is placed on the base wall part 206, and comprise a first side wall 208 a and a second side wall 208 b. The first side wall 208 a and second side wall 208 b project from the base wall part 171. Preferably, the transport safeguard 207 comprises merely the first side wall 208 a and the second side wall 208 b. Preferably, the first side wall 208 a and second side wall 208 b enclose an angle, in particular a right angle.

Additionally, the first stack loading aid 100 a may comprise feet 209 which are affixed to the transport rack. The first stack loading aid 100 a is placed on the base of the picking warehouse 1 via the feet 209. In an embodiment that is not shown, wheels instead of feet 209 may also be provided on the transport rack.

It can prove advantageous, as shown in FIGS. 7 a, 7 b , if the base wall part 206 is both inclined downwardly at a first inclination angle (α₁) with respect to a horizontal plane spanned between the first side wall 208 a and the second side wall 208 b in the direction towards the first side wall 208 a, and inclined downwardly at a second inclination angle (α₂) with respect to a horizontal plane spanned between the first side wall 208 a and the second side wall 208 b in the direction towards the second side wall 208 b. The first side wall 208 a and second side wall 208 b are oriented perpendicularly to the base wall part 206. The inclination angles α₁, α₂ preferably each amount to between 3° and 6°.

The base wall part 171 is preferably adapted in base area to the dimensions of the target loading aids 70, in particular a pallet, for example a Euro pallet, industrial pallet or Düsseldorfer pallet. To increase the flexibility in use of the first stack loading aid 100 a, the base area can be adapted to the dimension of the largest target loading aid 70. However, the first stack loading aid 100 a can also be adapted to the dimension of a single target loading aid 70.

According to the embodiment shown in FIGS. 8 a, 8 b , as opposed to the embodiment according to FIGS. 7 a to 7 c , the base wall part 206, which was described in further detail above, is oriented horizontally and extends in a horizontal plane spanned between the first side wall 208 a and the second side wall 208 b. The first side wall 208 a and the second side wall 208 b are oriented perpendicularly to the base wall part 206 and connected to the base wall part 206.

According to the embodiment shown, the first stack loading aid 100 a additionally comprises side walls which form a transport safeguard 207 for stabilizing the position of the order stack 106 when it is placed on the base wall part 206, and comprise a first side wall 208 a and a second side wall 208 b. Preferably, the transport safeguard 207 comprises merely the first side wall 208 a and the second side wall 208 b. Preferably, the first side wall 208 a and second side wall 208 b enclose an angle, in particular a right angle.

FIG. 9 shows an embodiment of a first stack loading aid 100 a, as can be used in the picking warehouse 1 shown.

The first stack loading aid 100 a comprises a transport rack and a base, wherein the transport rack forms a transport frame 205, against which the loading platform 151 of the transport vehicle 9 can be placed, and wherein the base forms a base wall part 206 on which the order stack 106 with the target loading aid 70 can be placed. According to the embodiment shown, the first stack loading aid 100 a comprises no additional side walls; these are provided by the transport vehicle 90, as is described above in FIG. 3 b.

Additionally, the first stack loading aid 100 a may comprise feet 209 which are affixed to the transport rack. The first stack loading aid 100 a is placed on the base or a conveying system (as will be described below) of the picking warehouse 1 via the feet 209. In an embodiment that is not shown, wheels instead of feet 209 may also be provided on the transport rack.

According to this embodiment, the base wall part 206 is oriented horizontally, although it is also possible that said base wall part 206 extends both inclined downwardly by a first inclination angle (α₁) with respect to a horizontal plane in the direction of a first longitudinal edge 210 a of said base wall part 206 and inclined downwardly by a second inclination angle (α₂) with respect to a horizontal plane in the direction of a second longitudinal edge 210 b of said base wall part 206, as indicated in dashed lines in FIG. 9 . The inclination angles α₁, α₂ preferably each amount to between 3° and 6°.

FIG. 10 shows an embodiment of a second stack loading aid 100 b, as can be used in the picking warehouse 1 shown.

The second stack loading aid 100 b can be embodied according to the embodiments of the first stack loading aid 100 a according to FIGS. 7 a to 7 c , 8, 9, merely with the difference that the base wall part 206 forms placing blocks 216 projecting on its upper side and being separated from one another by receiving channels 215, on which placing blocks 216 the article carriers 3 of the order stack 106 (not shown) can be placed, such that the second stack loading aid 100 b forms the target loading aid 170.

Even if merely the first side wall 173 a, 208 a and the second side wall 173 b, 208 b are provided, a sufficient stabilization of the position and a secure transport of the article carrier stack group 8 a, 8 b, 8 c are allowed for with the transport loading aid 7 a, 7 b, 7 c and/or a sufficient stabilization of the position and a secure transport of the order stack 106 are allowed for with the first stack loading aid 100 a and the second stack loading aid 100 b. It is also advantageous that a gripping system can grip the article carriers 3 on the transport loading aid 7 a, 7 b, 7 c from two sides at the unloading device 11, which significantly facilitates the unloading operation. It is also advantageous that the load securing device 120 may be operated with high performance as the first/second stack loading aid 100 a, 100 b may already be transported away from the load securing device 120 as soon as the target loading aid 70 with the order stack 106 has been slightly lifted from the base wall part 206 of the first stack loading aid 100 a, or the order stack 106 has been slightly lifted from the base wall part 206 of the second stack loading aid 100 b. Therefore, it is not necessary to lift the order stack 106 completely and over the entire height of the first/second stack loading aid 100 a, 100 b before the first/second stack loading aid 100 a, 100 b may be transported away.

As schematically shown merely in FIGS. 2 c, 4 a, 4 b , 5, the transport loading aid 7 a, 7 b, 7 c can be provided with a data carrier 25 c. Likewise, the first stack loading aid 100 a/the second loading aid 100 b may be provided with a data carrier 25 d for identifying the first stack loading aid 100 a/the second stack loading aid 100 b by means of a detecting device by reading a data carrier, as is schematically indicated merely in FIGS. 7 a, 7 b , 8, 10.

It can also prove advantageous if the picking warehouse 1 comprises a device for detecting data relating to the article carrier stack group 8 a, 8 b, 8 c and/or detecting data relating to the article carrier 3 and/or detecting data relating to the article 2 in the article carrier 3. According to the embodiment shown, it can be provided in the delivery zone 4, in particular the checking station, for example the one or multiple testing device(s) 20, and/or in particular the loading station, for example the one or multiple loading device(s) 10. In FIG. 2 a , the device for detecting data is referred to by number 22.

However, such a device for detecting data relating to the article carrier stack group 8 a, 8 b, 8 c and/or detecting data relating to the article carrier 3 and/or detecting data relating to the article 2 in the article carrier 3 can also be provided in the order processing zone 6, in particular the unloading station, for example the one or multiple automatically operated unloading device(s) 11 or the one and/or multiple partially automated unloading device(s) 11. In FIG. 2 d , the device for detecting data is referred to by number 22 and indicated in dashed lines.

The device for detecting data can comprise a camera system with one or multiple cameras or one or multiple barcode readers.

The device for detecting data is connected to the control system 16 via a data line, in order to transmit the data relating to the article carrier stack group 8 a, 8 b, 8 c and/or the data relating to the article carrier 3 and/or the data relating to the article 2 in the article carrier 3 to it.

The control system 16 comprises a control logic by which the data relating to the article carrier stack group 8 a, 8 b, 8 c and/or the data relating to the article carrier 3 and/or the data relating to the article 2 in the article carrier 3 are processed and control commands are generated, by means of which the unloading device(s) 11 is (are) controlled, and/or transport commands are generated, by means of which the autonomously movable, driverless transport vehicle(s) 9; 90 is (are) controlled. Specifically, a transfer device 72 (gripping unit) of the unloading device(s) 11 can be controlled and/or a drive unit of the transport vehicles 9; 90 can be controlled.

Based on this data, transport commands can be generated by means of which the autonomously movable, driverless transport vehicle(s) 9; 90 is (are) controlled. For example, a transport vehicle 9; 90 can receive a transport command by which an article carrier stack group 8 a, 8 b, 8 c containing damaged articles 2 is transported to a clearing place (preferably in the checking station) to remove the article carriers 3 with the damaged articles 2 there (if this was not already done at the testing device).

Below, the method for storing and picking article carriers 3 that contain articles 2 and are stackable in the picking warehouse 1 will be described.

The method comprises the steps:

-   -   i) providing autonomously movable, driverless transport vehicles         9; 90,     -   ii) providing mobile transport loading aids 7 a, 7 b, 7 c, 7 d,         each for receiving a (preferably a single) article carrier stack         group 8 a, 8 b, 8 c, wherein the mobile transport loading aids         comprise empty transport loading aids 7 a and loaded transport         loading aids 7 b, 7 c, 7 d,     -   iii) providing a transport safeguard 160; 174 on at least some         of the autonomously movable, driverless transport vehicles 90 or         on at least some of the mobile transport loading aids 7 a, 7 b,         7 c, 7 d, said transport safeguard 160; 174 serving for         stabilizing the position of an article carrier stack group 8 a,         8 b, 8 c while it is received on the mobile transport loading         aid 7 b, 7 c, 7 d,     -   iv) providing article carrier stack groups 8 a, 8 b, 8 c         comprising multiple article carriers 3 arranged next to one         another and on top of one another in a delivery zone 4 of the         picking warehouse 1,     -   v) transporting empty transport loading aids 7 a by means of the         autonomously movable, driverless transport vehicles 9; 90 to a         loading station and providing one or multiple empty transport         loading aid(s) 7 a either on one or on multiple automatically         operated loading device(s) 10 or on a buffer surface 43 close to         the loading device(s) 10,     -   vi) loading one of the empty transport loading aids 7 a, which         is provided at the automatically operated loading device 10,         with the article carrier stack group 8 a, 8 b, 8 c, which is         provided in the delivery zone 4 and is taken over essentially         unchanged on the empty transport loading aid 7 a, by the         automatically operated loading device 10,     -   vii) transporting the transport loading aid 7 b, 7 c, 7 d loaded         with the article carrier stack group 8 a, 8 b, 8 c by the         autonomously movable, driverless transport vehicle 9; 90 from         the loading station to a storage zone 5 and stabilizing the         position of the article carrier stack group 8 a, 8 b, 8 c by the         transport safeguard 160; 174 during the transport movement of         the loaded transport loading aid 7 b, 7 c, 7 d,     -   viii) placing the transport loading aid 7 b, 7 c, 7 d loaded         with the article carrier stack group 8 a, 8 b, 8 c on a storage         surface 45 in the storage zone 5,     -   ix) storing the transport loading aids 7 b, 7 c, 7 d loaded with         the article carrier stack groups 8 a, 8 b, 8 c in the storage         zone 5 (and optionally stabilizing the position of the article         carrier stack group 8 a, 8 b, 8 c by the transport safeguard         160; 174 during storage of the loaded transport loading aid 7 b,         7 c, 7 d),     -   x) processing a picking order comprising the following steps         -   transporting one or multiple transport loading aid(s) 7 b, 7             c, 7 d containing the article carriers 3 required for a             picking order from the storage zone 5 to an unloading             station and providing said transport loading aid(s) 7 b, 7             c, 7 d either at one or at multiple automatically operated             unloading device(s) 11 or on a buffer surface 73 close to             the unloading device(s) 11 by means of one or multiple             autonomously movable, driverless transport vehicle(s) 9; 90             and stabilizing the position of the article carrier stack             group 8 a, 8 b, 8 c by the transport safeguard 160; 174             during the transport movement of the loaded transport             loading aid, 7 b, 7 c, 7 d         -   unloading one or multiple ones of the transport loading             aid(s) 7 b, 7 c, 7 d which is (are) provided at the             automatically operated unloading device(s) 11, by removing             the article carriers 3 required for processing said picking             order and optionally stabilizing the position of the article             carrier stack group 8 a, 8 b, 8 c by the transport safeguard             160; 174 during the automatic unloading movements of the             automatically operated unloading device(s) 11, and         -   assembling the article carriers 3 on one or multiple target             loading aids 70; 170 for the mentioned picking order in an             order processing zone 6.

Providing autonomously movable, driverless transport vehicles 9; 90 according to step i) may comprise providing transport vehicles 9; 90, which are used exclusively for transporting the transport loading aid(s) 7 a, 7 b, 7 c, 7 d between the delivery zone 4 (loading station) and the storage zone 5, and may comprise providing transport vehicles 9; 90, which are used exclusively for transporting the transport loading aid (s) 7 a, 7 b, 7 c, 7 d between the storage zone 5 and the order processing zone 6 (removal station—automatically operated unloading device 11 and/or partially automated unloading device 100).

The provision of autonomously movable, driverless transport vehicles 9; 90 according to step i) may comprise the provision of transport vehicles 9; 90, which are used in the removal station and merely for transporting the first stack loading aid(s) 100 a and/or second stack loading aid(s) 100 b between the automatically operated unloading device 11 and the partially automated unloading device 100.

Likewise, however, step i) may also comprise the provision of transport vehicles 9; 90 which are used for transporting the transport loading aid(s) 7 a, 7 b, 7 c, 7 d between the delivery zone 4 (loading station) and the storage zone 5 and transporting the transport loading aid(s) 7 a, 7 b, 7 c, 7 d between the storage zone 5 and the order processing zone (removal station), as well as for transporting the first stack loading aid(s) 100 a and/or the second stack loading aid(s) 100 b between the automatically operated unloading device 11 and the partially automated unloading device 100.

Providing mobile transport loading mobile aids 7 a, 7 b, 7 c, 7 d according to step ii) may comprise providing structurally identical transport loading aids 7 a, 7 b, 7 c, 7 d or structurally different transport loading aids 7 a, 7 b, 7 c, 7 d.

According to a first embodiment, the provision of a transport safeguard 160 according to step iii) may comprise the provision of a transport safeguard 160 on at least some or all of the autonomously movable, driverless transport vehicles 90. According to a second embodiment, the provision of a transport safeguard 174 according to step iii) may comprise the provision of a transport safeguard 174 on at least some or all of the mobile transport loading aids 7 a, 7 b, 7 c. According to both embodiments, the transport safeguard 160, 174 serves for stabilizing the position of an article carrier stack group 8 a, 8 b, 8 c when it is received on a base wall part 171 of the mobile transport loading aid 7 b, 7 c, 7 d and the mobile transport loading aid 7 b, 7 c, 7 d is transported or unloaded.

In the present context, “stabilizing the position of an article carrier stack group” according to steps iii), vii) and x) means that lateral slipping of individual article carriers 3 in the article carrier stack group 8 a, 8 b, 8 c or lateral slipping of the article carrier stack group 8 a, 8 b, 8 c in relation to the transport loading aids 7 b, 7 c, 7 d is prevented or at least limited by the transport safeguard 160, 174.

When the article carriers 3 of the article carrier stack group 8 a, 8 b, 8 c are supported against the transport safeguard 160, 174, for example against side walls of the transport safeguard 160, 174, lateral slipping of individual article carriers 3 in the article carrier stack group 8 a, 8 b, 8 c or lateral slipping of the article carrier stack group 8 a, 8 b, 8 c in relation to the transport loading aid 7 b, 7 c, 7 d is prevented from the outset. The article carrier stack group 8 a, 8 b, 8 c can be reliably transported by the transport safeguard 160, 174 even if the mobile transport loading aid 7 b, 7 c, 7 d is moved highly dynamically with the transport vehicle 9; 90.

Moreover, a stabilization of the position of the article carrier stack group 8 a, 8 b, 8 c by the transport safeguard 160; 174 can also be provided during storage of the loaded transport loading aid 7 b, 7 c, 7 d. This applies in particular if the transport safeguard 174 is formed on the mobile transport loading aid 7 b, 7 c.

The mobile transport loading aids 7 b, 7 c, 7 d can also be unloaded reliably (automatically) at the unloading device 11. During the unloading operation of individual article carriers 3 or an article carrier stack, the transport safeguard 160; 174 prevents or at least limits lateral slipping of individual article carriers 3 in the article carrier stack group 8 a, 8 b, 8 c or lateral slipping of the article carrier stack group 8 a, 8 b, 8 c in relation to the transport loading aids 7 b, 7 c, 7 d.

Although this is not at all obligatory, it can prove advantageous if the mobile transport loading aids 7 b, 7 c, 7 d are loaded such that individual article carriers 3 or the article carrier stack group 8 a, 8 b, 8 c are supported against the transport safeguard 160, 174, for example against the side walls 161 a, 161 b of the transport vehicle 90 or the side walls 173 a, 173 b of the mobile transport loading aids 7 b, 7 c, 7 d.

Step iv) may, firstly, comprise the provision of article carrier stack groups 8 a, 8 b, 8 c with a delivery load carrier 17 a, 17 b, 17 c or the provision of article carrier stack groups 8 a, 8 b, 8 c without a delivery load carrier 17 a, 17 b, 17 c. The delivery load carrier 17 a, 17 b, 17 c is predominantly a plate.

For example, the article carriers 3 may carry fruit or vegetables, wherein, for example, a first article carrier stack group 8 a, 8 b, 8 c contains a first type of vegetable and a second article carrier stack group 10 contains a second type of vegetable.

Step v) may comprise transporting empty transport loading aids 7 a by means of the autonomously movable, driverless transport vehicles 9; 90 to a loading station and directly providing (an) empty loading aid(s) 7 a on one or multiple automatically operated loading device(s) 10.

However, step v) may also comprise transporting empty transport loading aids 7 a by means of the autonomously movable, driverless transport vehicles 9; 90 to a loading station onto a buffer surface 43 close to the loading device(s) 10 and transporting said empty transport loading aid(s) 7 a by means of the autonomously movable, driverless transport vehicles 9; 90 to the loading device(s) 10 and providing said empty transport loading aid(s) 7 a on one or multiple automatically operated loading device(s) 10.

Providing an empty transport loading aid 7 a on one or multiple automatically operated loading device(s) 10 according to step v) may comprise the following steps:

-   -   placing the empty transport loading aid 7 a at a service         location 41 having the relevant loading device 10 and having the         transport vehicle 9; 90 remain at the service location 41 during         the loading operation of the empty transport loading aid 7 a         according to step vi), or     -   placing the empty transport loading aid 7 a at a service         location 41 having the relevant loading device 10 and         subsequently having the transport vehicle 9; 90 move on from the         service location 41, thus even before the start or during the         loading operation of the empty transport loading aid 7 a         according to step vi).

Loading the empty transport loading aids 7 a according to step vi) may comprise loading one of the empty transport loading aids 7 a with a (single) article carrier stack group 8 a, 8 b, 8 c. The article carrier stack group 8 a, 8 b, 8 c is fed to the loading station essentially unchanged. In this context, “essentially unchanged” means that no separation of the article carrier stack group 8 a, 8 b, 8 c into article carrier stack or individual article carriers (depalletizing operation) is carried out before loading an empty transport loading aid 7 a. “Essentially unchanged” also means that prior to loading an empty transport loading aid 7 a a removal of a packaging film (stretch film or shrink film) and/or checking quality features in the manner described above is possible, even if individual article carriers 23 (for example with damaged articles) are removed from the article carrier stack group 8 a, 8 b, 8 c in the course of the quality check.

Step ix) may comprise the storage of transport loading aids 7 b which are loaded with an unchanged (complete) article carrier stack group 8 a, 8 b, 8 c after loading at the loading station, and/or comprise transport loading aids 7 c which are loaded with an unchanged (complete) article carrier stack group 8 a, 8 b, 8 c after processing of a picking order.

Step x) may comprise transporting loaded transport loading aids 7 b, 7 c by means of the autonomously movable, driverless transport vehicles 9; 90 from the storage zone 5 (but possibly also from the loading station in the delivery zone 4) to an unloading station and directly providing (a) loaded loading aid(s) 7 b, 7 c on one or multiple automatically operated unloading device(s) 11.

However, step x) may also comprise transporting loaded transport loading aids 7 b, 7 c by means of the autonomously movable, driverless transport vehicles 9; 90 from the storage zone 5 (but possibly also from the loading station in the delivery zone 4) to an unloading station onto a buffer surface 73 close to the unloading device(s) 11 and transporting said loaded transport loading aid(s) 7 b, 7 c by means of the autonomously movable, driverless transport vehicles 9; 90 from the buffer surface 73 to the unloading device(s) 11 and providing said loaded transport loading aid(s) 7 b, 7 c on one or multiple unloading device(s) 11.

The transport vehicles 9; 90 may also be controlled by the main computer such that they arrive at the unloading station in an order provided by the packing order of the article carriers 3 at the target loading aid 70, 170. Thus, a sequencing of the transport loading aids 7 b, 7 b is achieved.

Providing a loaded transport loading aid (s) 7 b, 7 c on one or multiple automatically operated unloading device(s) 11 according to step x) may comprise the following steps:

-   -   placing the loaded transport loading aid (s) 7 b, 7 c at a         service location 71 a, 71 b having the relevant unloading device         11 and having the transport vehicle 9; 90 remain at the service         location 71 a, 71 b during the unloading operation of the loaded         transport loading aid (s) 7 b, 7 c according to step x), or     -   placing the loaded transport loading aid (s) 7 b, 7 c at a         service location 71 a, 71 b having the relevant unloading device         11 and subsequently having the transport vehicle 9; 90 move on         from the service location 71 a, 71 b, thus even before the start         or during the unloading operation of the loaded transport         loading aid (s) 7 b, 7 c according to step x).

The transport of loaded transport loading aids 7 b, 7 c in step x) comprises stabilizing the position of the article carrier stack group 8 a, 8 b, 8 c by the transport safeguard 160; 174 during the transport movement, as described above.

The unloading operation of one or multiple loaded transport loading aids 7 b, 7 c in step x) may comprise stabilizing the position of the article carrier stack group 8 a, 8 b, 8 c by the transport safeguard (160; 174) during the unloading movement. This may be the case if the gripping system carried out unloading movements, which were initially accordingly programmed, in the direction towards the transport safeguard 164, 170, to move at first one or at the same time multiple article carriers 3 against the transport safeguard 164, 170 and to thus enable a safe reception of one or at the same time multiple article carrier(s) 3. Such an automatic unloading operation may, for example, be applied in case of article carriers 3 that are difficult to grip. However, this is not to be understood as obligatory, but rather the unloading operation can also be embodied in such a way that the gripping system carries out unloading movements, which were initially accordingly programmed, in the opposite direction to the direction of the transport safeguard 164, 170 in order to enable rapid pick-up of one or at the same time multiple article carrier(s) 3. Such an unloading operation may, for example, be applied in case of article carriers 3 that are simple to grip.

The method for storing and picking articles 2 can comprise the following steps:

-   -   providing article carrier stack groups 8 a, 8 b, 8 c on delivery         load carriers 17 a, 17 b, 17 c and loading one of the empty         transport loading aids 7 a with one of the article carrier stack         groups 8 a, 8 b, 8 c on a delivery load carrier 17 a, 17 b, 17         c.

If the article carrier stack groups 8 a, 8 b, 8 c are provided on delivery load carriers 17 a, 17 b, 17 c in the delivery zone 4, these are transferred to empty transport loading aids 7 a essentially “unchanged” in the manner described above, i.e. the article carrier stack group 8 a, 8 b, 8 c is transferred with a delivery load carrier 17 a, 17 b, 17 c onto an empty transport loading aid 7 a by the loading device 10.

The method for storing and picking articles 2 can comprise the following steps:

-   -   assembling the article carriers 3 for the mentioned picking         order by the unloading device 11, in that an individual article         carrier 3 removed from the article carrier stack group 8 a, 8 b,         8 c or an article carrier stack removed from the article carrier         stack group 8 a, 8 b, 8 c is transferred onto a target loading         aid 70; 170.

According to this embodiment, the one or multiple automatically operated unloading device(s) 11 at the same time forms one or multiple reloading device(s) and/or picking device(s) for assembling the article carriers 3 for a picking order. The article carrier stack comprises multiple article carriers 3 arranged on top of one another.

The method for storing and picking articles 2 can additionally comprise one of the steps x):

-   -   i) transporting a transport loading aid 7 b, 7 c from the         unloading station back to the storage zone 5 after removal of         the article carriers 3 if not all article carriers 3 have been         removed from the mentioned transport loading aid 7 b, 7 c, or     -   ii) transporting a transport loading aid 7 b, 7 c from a first         unloading device 11 to a second unloading device 11 after         removal of the article carriers 3 if not all article carriers 3         have been removed from the mentioned transport loading aid 7 b,         7 c and if said article carriers 3 are needed at the second         unloading device 11 for a picking order, or     -   iii) transporting a transport loading aid 7 b, 7 c from the         unloading device 11 to a waiting zone 74 in the unloading         station after removal of the article carriers 3 if not all         article carriers 3 have been removed from the mentioned         transport loading aid 7 b, 7 c and if said article carriers 3         are needed at the mentioned unloading device 11 or one of the         unloading devices 11 for an already advised picking order, or     -   iv) transporting a transport loading aid 7 b, 7 c back to the         loading station after removal and providing the transport         loading aid 7 b, 7 c either at the automatically operated         loading device 10 or on the buffer surface 43, if all article         carriers 3 have been 7 b, 7 c removed from the mentioned         transport loading aid 7 b, 7 c,     -   iv) stabilizing the position of a changed “opened” article         carrier stack group 8 a, 8 b, 8 c if not all article carriers 3         were removed from the mentioned transport loading aid 7 b, 7 c,         by the transport safeguard 160; 174 during the mentioned         transport movement according to case i), ii) and iii).

In the present context, “stabilizing the position of an “opened” article carrier stack group according to step x) means that lateral slipping of individual article carriers 3 in the “opened” article carrier stack group 8 a, 8 b, 8 c or lateral slipping of the “opened” article carrier stack group 8 a, 8 b, 8 c in relation to the transport loading aids 7 b, 7 c is prevented or at least limited by the transport safeguard 160, 174. The “opened” article carrier stack group 8 a, 8 b, 8 c can be reliably transported by the transport safeguard 160, 174 even if the mobile transport loading aid 7 b, 7 c is moved highly dynamically with the transport vehicle 9; 90.

In the present context, an “opened” article carrier stack group 8 a, 8 b, 8 c means that at least one article carrier 3 was removed from the article carrier stack group 8 a, 8 b, 8 c which was “provided unchanged”. Accordingly, the article carrier stack group 8 a, 8 b, 8 c was changed (in terms of the number of article carriers).

As indicated merely in FIG. 1 b and explained with the example of the described picking system, the method for storing and picking articles 2 may additionally comprise the steps:

-   -   providing a first temperature zone 220 a in the storage zone 5,         in which the transport loading aids 7 b, 7 c with the article         carrier stack groups 8 a, 8 b, 8 c comprising article carriers 3         arranged next to one another and on top of one another         containing articles 2 of a first article group,     -   providing a second temperature zone 220 b in the storage zone 5,         in which the transport loading aids 7 b, 7 c with the article         carrier stack groups 8 a, 8 b, 8 c comprising article carriers 3         arranged next to one another and on top of one another         containing articles 2 of a second article group,     -   definition of a first article group and of a second article         group, to which first article group articles 2 of a first         storage temperature are assigned and to which second article         group articles 2 of a second storage temperature are assigned,         and detecting data comprising data of the first article group,         in particular a first storage temperature for the articles 2,         and the second article group, in particular a second storage         temperature for the articles 2, on a computer (which is         connected to the control system 16),     -   identifying the article carrier stack group 8 a, 8 b, 8 c and/or         transport loading aid by 7 b, 7 c means of a detection device 22         provided in the delivery zone 4 by reading a data carrier 25 a,         25 b, 25 c (RFID, barcode), said data carrier 25 a, 25 b, 25 c         being provided in each case on the article carrier stack groups         8 a, 8 b, 8 c and/or transport loading aids 7 b, 7 c,     -   selectively transporting the transport loading aids 7 b, 7 c in         each case loaded with the article carrier stack group 8 a, 8 b,         8 c in step vi) at the loading device 10 by the autonomously         movable, driverless transport vehicles 9; 90 either into the         first temperature zone 220 a or the second temperature zone 220         b and stabilizing the position of the article carrier stack         group 8 a, 8 b, 8 c by the transport safeguard 160; 174 during         the transport movement of the loaded transport loading aid 7 b,         7 c,     -   storing the transport loading aids 7 b, 7 c with the article         carrier stack group 8 a, 8 b, 8 c comprising article carriers 3         arranged next to one another and on top of one another         containing articles 2 of the first article group in the first         temperature zone 220 a (and optionally stabilizing the position         of the article carrier stack group 8 a, 8 b, 8 c by the         transport safeguard 160; 174 during storage of the loaded first         transport loading aid 7 b, 7 c),     -   storing the transport loading aids 7 b, 7 c with the article         carrier stack group 8 a, 8 b, 8 c comprising article carriers 3         arranged next to one another and on top of one another         containing articles 2 of the second article group in the second         temperature zone 220 b (and optionally stabilizing the position         of the article carrier stack group 8 a, 8 b, 8 c by the         transport safeguard 160; 174 during storage of the loaded second         transport loading aid 7 b, 7 c).

The method for storing and picking articles 2 can additionally comprise the following steps:

-   -   transporting one or multiple transport loading aid(s) 7 b, 7 c         containing the article carriers 3 required for a first picking         order from the first temperature zone 220 a, and transporting         one or multiple transport loading aid(s) 7 b, 7 c containing the         article carriers 3 required for a second picking order from the         second temperature zone 220 b, to the unloading station using a         commonly used, automatically operated unloading device 11 and         stabilizing the position of the article carrier stack group by         the transport safeguard 160; 174 during the transport movement         of the loaded transport loading aid(s) 7 b, 7 c,     -   providing the mentioned transport loading aid(s) 7 b, 7 c for         the first picking order either at the automatically operated         unloading device 11 or on a buffer surface 73 near the unloading         device 11 by means of the autonomously movable, driverless         transport vehicle(s) 9; 90,     -   providing the mentioned transport loading aid(s) 7 b, 7 c for         the second picking order either at the automatically operated         unloading device 11 or on a buffer surface 73 near the unloading         device 11 by means of the autonomously movable, driverless         transport vehicle(s) 9; 90,     -   sequentially assembling article carriers 3 on a first target         loading aid 70; 170 with multiple article carriers 3 containing         articles 2 of a first article group, and assembling article         carriers 3 on a second target loading aid 70; 170 with multiple         article carriers 3 containing articles 3 of a second article         group at the removal station with a commonly used, automatically         operated unloading device 11.

The method described above for storing and picking articles 2 in the picking warehouse 1 may additionally comprise the following steps:

-   -   providing stack loading aids 100 a, 100 b, each for receiving         and stabilizing the position of an order stack 106 assembled of         the article carriers 3 according to a picking order.

Providing the stack loading aids in the picking warehouse 1 may comprise providing one or multiple first stack loading aid(s) 100 a and/or one or multiple second stack loading aid(s) 100 b. The first stack loading aid 100 a and the second stack loading aid 100 b each comprise a base wall part 206 and side walls 208 a, 208 b projecting therefrom.

On the one hand, the side walls 208 a, 208 b form the transport safeguard 207 for stabilizing the position of an order stack 106 when it is received, with the target loading aid 70, on the base wall part 206 of the first stack loading aid 100 a.

On the one hand, the side walls 208 a, 208 b form the transport safeguard 207 for stabilizing the position of an order stack 106 when it is received on the base wall part 206 of the second stack loading aid 100 b.

However, in principle, it would also be conceivable that the first stack loading aid(s) 100 a and/or second stack loading aid(s) 100 b are formed without the side walls 208 a, 208 b described above. In this case, the transport safeguard 207 for stabilizing the position of an order stack 106, when it is received by the first stack loading aid 100 a or the second stack loading aid 100 b, in particular on the base wall part 206, is formed by the transport vehicle(s) 90 described above in FIG. 3 b.

In the present context, “stabilizing the position of an order stack” means that lateral slipping of individual article carriers 3 in the order stack 106 or lateral slipping of the order stack 106 in relation to the stack loading aid 100 a, 100 b is prevented or at least limited by the transport safeguard 207.

The order stack 106 can be reliably transported by the transport safeguard 207 even if the mobile stack loading aid 100 a, 100 b is moved highly dynamically with the transport vehicle 9; 90.

The mobile stack loading aids 100 a, 100 b can also be loaded with article carriers 3 reliably (automatically) at the unloading device 11. During the loading operation (picking operation), lateral slipping of individual article carriers 3 in the order stack 106 or lateral slipping of the order stack 106 in relation to the stack loading aid 100 a, 100 b is prevented or at least limited by the transport safeguard 207.

Although this is not at all obligatory, it can prove advantageous if the mobile stack loading aids 100 a, 100 b are loaded such that individual article carriers 3 or the order stack 106 are supported against the transport safeguard 207, for example against the side walls 161 a, 161 b of the transport vehicle 90 or the side walls 208 a, 208 b of the mobile stack loading aids 100 a, 100 b.

If the first stack loading aids 100 a are used in the picking warehouse 1, the method may additionally comprise the following steps:

-   -   lading the first stack loading aid 100 a with a target loading         aid 70 at the lading station by means of one or multiple         automatically operated lading device(s) 110 by placing the         target loading aid 70 on the base wall part 205.

If the second stack loading aids 100 b are used in the picking warehouse 1, the method may additionally comprise the following steps:

-   -   defining the second stack loading aid 100 b as the target         loading aid 170 by the second stack loading aids 100 b forming         the target loading aids 170.

If the first stack loading aids 100 a and the second stack loading aids 100 b are used in the picking warehouse 1, the method may additionally comprise the following steps:

-   -   lading the first stack loading aid 100 a with a target loading         aid 70 at the lading station by means of one or multiple         automatically operated lading device(s) 110 by placing the         target loading aid 70 on the base wall part 206, and     -   defining the second loading aid 100 b as the target loading aid         170.

The method for storing and picking articles 2 can additionally comprise the following steps:

-   -   transporting first/second stack loading aids 100 a, 100 b by         means of the autonomously movable, driverless transport vehicles         9; 90 to the unloading station and providing one or multiple         stack loading aid(s) 100 a, 100 b either on one or on multiple         automatically operated unloading device(s) 11 or on a buffer         surface 92 close to the unloading device(s) 11,     -   assembling the article carriers 3 according to the mentioned         picking order to the order stack 106 on the target loading aid         70 in the first stack loading aid 100 a or on the base wall part         206 of the second stack loading aid 100 b, said first stack         loading aid 100 a or second stack loading aid 100 b being         provided at the automatically operated unloading device(s) 11.

The method for storing and picking articles 2 described above may additionally comprise the following steps for processing a picking order at one or multiple partially automated unloading device(s) 100:

-   -   transporting one or multiple transport loading aid(s) 7 b, 7 c,         7 d containing the article carriers 3 required for the picking         order from the loading station and/or from the storage zone 5 to         an unloading station and providing said transport loading aid(s)         7 b, 7 c, 7 d either at one or at multiple partially automated         unloading device(s) 100 or on a buffer surface 104 a close to         the unloading device(s) 100 by means of one or multiple         autonomously movable, driverless transport vehicle(s) 9; 90 and         stabilizing the position of the article carrier stack group 8 a,         8 b, 8 c by the transport safeguard 160; 174 during the         transport movement of the loaded transport loading aid, 7 b, 7         c,     -   manually unloading one or multiple ones of the transport loading         aid(s) 7 b, 7 c which is (are) provided at the partially         automated unloading device(s) 100, by removing the article         carriers 3 required for processing said picking order and         optionally stabilizing the position of the article carrier stack         group 8 a, 8 b, 8 c by the transport safeguard 160; 174 during         the manually unloading movements of a warehouse worker at the         automatically operated unloading device(s) 11, and     -   manually assembling the article carriers 3 on one or multiple         target loading aids 70; 170 for the mentioned picking order, if         the target loading aid(s) 70; 170 is (are) provided at the         partially automated unloading device(s) 100.

In the present context, “stabilizing the position of an article carrier stack group” means that lateral slipping of individual article carriers 3 in the article carrier stack group 8 a, 8 b, 8 c or lateral slipping of the article carrier stack group 8 a, 8 b, 8 c in relation to the transport loading aids 7 b, 7 c is prevented or at least limited by the transport safeguard 160, 174. The article carrier stack group 8 a, 8 b, 8 c can be reliably transported by the transport safeguard 160, 174 even if the mobile transport loading aid 7 b, 7 c is moved highly dynamically with the transport vehicle 9; 90, as described above.

The mobile transport loading aids 7 b, 7 c can also be unloaded reliably (manually) at the unloading device 100. If a stabilization of the position of the article carrier stack group 8 a, 8 b, 8 c during the unloading movement of individual article carriers 3 or an article carrier stack is provided, the transport safeguard 160; 174 can prevent or at least limit lateral slipping of individual article carriers 3 in the article carrier stack group 8 a, 8 b, 8 c or lateral slipping of the article carrier stack group 8 a, 8 b, 8 c in relation to the transport loading aids 7 b, 7 c.

This can prove advantageous if the warehouse worker moves one or multiple article carriers 3 at the same time initially against the transport safeguard 164, 170, thereby enabling safe pick-up of one or multiple article carrier(s) 3 at the same time. Such a manual unloading operation may, for example, be applied in case of article carriers 3 that are difficult to grip. However, this is not to be understood as obligatory, but rather the unloading operation can also be embodied in such a way that the warehouse worker initially performs an unloading movement in the opposite direction to the direction of the transport safeguard 164, 170 in order to enable rapid pick-up of one or at the same time multiple article carrier(s) 3. Such an unloading operation may, for example, be applied in case of article carriers 3 that are simple to grip.

Likewise, the aforementioned advantages for “stabilizing the position of an order stack” at the automatically operated loading device(s) 11 also apply to the use of the mobile stack loading aids 100 a, 100 b at the partially automated loading device 100.

Providing loaded transport loading aid(s) 7 b, 7 c at one or multiple partially automated unloading device(s) 100 may comprise the following steps:

-   -   receiving a transport loading aid 7 b, 7 c from an autonomously         movable, driverless transport vehicle 9; 90 to a lifting         platform 105 a of the unloading device(s) 100,     -   serving the article carriers 3 at a serving level by lifting the         transport loading aid 7 b, 7 c, which is placed on the lifting         platform 105 a, in order to enable ergonomic unloading of the         article carriers 3 by a picker.

The method for storing and picking articles 2 may additionally comprise the following steps for processing a picking order at one or multiple partially automated unloading device(s) 100:

-   -   transporting empty target loading aids 70; 170, by means of the         autonomously movable, driverless transport vehicles 9; 90, to         the unloading station and providing said empty target loading         aids 70; 170 either at one or multiple partially automated         unloading device(s) 100 or on a buffer surface 104 b close to         the unloading device(s) 100 by means of one or multiple         autonomously movable, driverless transport vehicles 9; 90,     -   manually assembling the article carriers 3 on one or multiple         empty target loading aids 70; 170 for the mentioned picking         order, if the empty target loading aid(s) 70; 170 is (are)         provided at the partially automated unloading device(s) 100.

The method for storing and picking articles 2 may additionally comprise the following steps for processing a picking order at one or multiple partially automated unloading device(s) 100:

-   -   transporting partially loaded target loading aids 70; 170 by         means of the autonomously movable, driverless transport vehicles         9; 90 from the automatically operated unloading device 11 to the         partially automated unloading device 100 or to a buffer surface         104 b close to the partially automated unloading device(s) 100         after the article carriers 3 have been assembled on the         partially loaded target loading aid 70; 170 at the automatically         operated unloading device 11 and if article carriers 3 are still         required for the mentioned picking order which are provided via         the transport loading aids 7 b, 7 c at the partially automated         unloading device(s) 100,     -   manually assembling the article carriers 3 on one or multiple         partially loaded target loading aids 70; 170 for the mentioned         picking order, if the partially loaded target loading aid(s) 70;         170 is (are) provided at the partially automated unloading         device(s) 100.

The method for storing and picking articles 2 may additionally comprise the following steps for processing a picking order at one or multiple partially automated unloading device(s) 100:

-   -   transporting stack loading aids 100 a, 100 b by means of the         autonomously movable, driverless transport vehicles 9; 90 to the         unloading station and providing one or multiple stack loading         aid(s) 100 a, 100 b either on one or on multiple partially         automated unloading device(s) 100 or on a buffer surface 104 b         close to the unloading device(s) 100,     -   assembling the article carriers 3 according to the mentioned         picking order to the order stack 106 on the target loading aid         70 in the first stack loading aid 100 a or on a base wall part         206 of the second stack loading aid 100 b, said first stack         loading aid 100 a or second stack loading aid 100 b being         provided at the partially automated unloading device(s) 100.

The method for storing and picking articles 2 can additionally comprise the following steps:

-   -   providing an order stack load securing station either with one         or multiple automatically operated load securing device(s) 120         or with one or multiple automatically operated load securing         device(s) 120 and a buffer surface 125 close to the load         securing device(s) 120, said load securing devices 120 being         formed for securing transport of an order stack 106 with a         securing means 121,     -   transporting stack loading aids 100 a, 100 b each loaded with         one order stack 106 by means of the autonomously movable,         driverless transport vehicles 9; 90 to the mentioned order stack         load securing station and providing one or multiple stack         loading aid(s) 100 a, 100 b either on one or on multiple         automatically operated load securing device(s) 120 or on a         buffer surface 125 close to the load securing device(s) 120,     -   removing the order stack 106 from the stack loading aid 100 a,         100 b by means of a lifting device 123, 124, by means of which         the target loading aid 70 with the order stack 106 is lifted         from the first stack loading aid 100 a, if the picking warehouse         1 comprises the first stack loading aid 100 a, or by means of         which the order stack 106 is lifted from the second stack         loading aid 100 b if the picking warehouse 1 comprises the         second stack loading aid 100 b,     -   securing the order stack 106 with the securing means 121 by         means of the automatically operated load securing device 120, in         that the securing means 121 is placed circumferentially around         the order stack 106,     -   transporting the secured order stack 106, in particular by means         of the autonomously movable, driverless transport vehicles 9;         90, from the load securing station to a distribution zone.

According to the first embodiment, the target loading aid 70 with the order stack 106 is lifted relative to the first stack loading aid 100 a, and the order stack 106 lifted from the first stack loading aid 100 a is simultaneously wrapped with the securing means 121 for stabilization. Subsequently, the secured order stack 106 is lowered again by means of the lifting device and transferred to a stationary conveying system (not shown) or to an autonomously movable, driverless transport vehicle 9; 90. The order stack 106 now secured may be transported from the load securing station to a distribution zone (consolidation area or goods-out point). In this case, the target loading aid 70 forms the distribution load carrier.

According to the second embodiment, the order stack 106 is lifted relative to the second stack loading aid 100 b, and the order stack 106 lifted from the second stack loading aid 100 b is simultaneously wrapped with the securing means 121 for stabilization. Subsequently, the secured order stack 106 is lowered again by means of the lifting device and transferred to a distribution load carrier, preferably a roll container, a pallet and the like. The distribution load carrier is transported by means of a stationary conveying system (not shown) or an autonomously movable, driverless transport vehicle 9; 90 from the load securing station to a distribution zone (consolidation area or goods-out point).

Transporting the unloaded stack loading aids 100 a, 100 b by means of the autonomously movable, driverless transport vehicles 9; 90 may comprise the following steps:

-   -   transporting the first stack loading aid 100 a from the load         securing station to the lading station with one or multiple         automatically operated lading device(s) 110, if a first stack         loading aid is 100 a used in the picking warehouse 1, and/or     -   transporting the second stack loading aid 100 b from the load         securing station to the unloading station and providing the         second stack loading aid(s) 100 b either at an automatically         operated unloading device 11 or on a buffer surface 92 close to         the unloading device 11, if a second stack loading aid 100 b is         used in the picking warehouse 1, and/or     -   transporting the second stack loading aid 100 b from the load         securing station to the unloading station and providing the         second stack loading aid(s) 100 b either at a partially         automated unloading device 100 or on a buffer surface 104 b         close to the unloading device 100, if a second stack loading aid         100 b is used in the picking warehouse 1.

The method for storing and picking articles 2 in the picking warehouse 1 can additionally comprise the following steps:

-   -   providing a cleaning system with an automatically operated         cleaning robot 85 (as schematically depicted in FIG. 1 a ),     -   cleaning the transport loading aids 7 a, 7 b, 7 c, 7 d and/or         the base in the loading station and/or unloading station         (therefore the service locations, the buffer surface and         according to the first embodiment the waiting zone) and storage         surface 45 in the storage zone 5 with the cleaning robot 85.

It should also be noted that the service locations 41, 71 a, 71 b, 101 a may also be formed on an automatically operated stationary conveying system for transporting the transport loading aids 7 a, 7 b, 7 c to the service location 41, 71 a, 71 b, 101 a and transporting the transport loading aids 7 a, 7 b, 7 c away from the service location 41, 71 a, 71 b, 101 a, wherein transport sections of this stationary conveying system form the service locations 41, 71 a, 71 b, 101 a for the provision of the transport loading aids 7 a, 7 b, 7 c. Additionally, this stationary conveying system can form a take-over location and a transfer location in a transport section.

Below, this will be described using an example in which a transport loading aid 7 a, 7 b, 7 c is to be provided at an automatically operated unloading device 11.

One of the autonomously movable, driverless transport vehicles 9 transports a transport loading aid 7 b, 7 c to the stationary conveying system, where, then, the transfer of the transport loading aid 7 b, 7 c from the transport vehicle 9 to the take-over location is carried out. Then, the transport loading aid 7 b, 7 c is transported from the take-over location to the service location 71 a, 71 b. After removal of the article carriers 3 from the transport loading aid 7 b, 7 c, when it is provided at the unloading device 11, in particular on a service location 71 a, 71 b, the transport loading aid 7 b, 7 c is transported from the service location 71 a, 71 b to the transfer location, where, then, the transfer of the transport loading aid 7 b, 7 c from the transfer location onto the transport vehicle 9 is carried out.

Likewise, a transport loading aid 7 a, 7 b, 7 c can be provided at a partially automated unloading device 100.

Likewise, service locations 91 a, 91 b, 101 b, 111, 122 may also be formed on an automatically operated stationary conveying system for transporting the stack loading aids 100 a, 100 b to the service location 91 a, 91 b, 101 b, 111, 122 and transporting the stack loading aids 100 a, 100 b away from the service location 91 a, 91 b, 101 b, 111, 122, wherein transport sections of this stationary conveying system form the service locations 91 a, 91 b, 101 b, 111, 122 for the provision of the stack loading aids 100 a, 100 b. Additionally, this stationary conveying system can form a take-over location and a transfer location in a transport section.

Below, this will be described using an example in which a stack loading aid 100 a, 100 b is to be provided at an automatically operated unloading device 11.

One of the autonomously movable, driverless transport vehicles 9 transports a stack loading aid 100 a, 100 b to the stationary conveying system, where, then, the transfer of the stack loading aid 100 a, 100 b from the transport vehicle 9 to the take-over location is carried out. Then, the stack loading aid 100 a, 100 b is transported from the take-over location to the service location 91 a, 91 b. After loading of the stack loading aid 100 a, 100 b with article carriers 3, when these are provided at the unloading device 100, in particular on a service location 91 a, 91 b, the stack loading aid 100 a, 100 b is transported from the service location 91 a, 91 b to the transfer location, where, then, the transfer of the stack loading aid 100 a, 100 b from the transfer location onto the transport vehicle 9 is carried out.

Likewise, a stack loading aid 100 a, 100 b can be provided at a partially automated unloading device 100.

In summary, it can be noted that service locations 41, 71 a, 71 b, 101 a for the transport loading aids 7 a, 7 b, 7 c, 7 d and/or the service locations 91 a, 91 b, 101 b, 111, 122 for the stack loading aid 100 a, 100 b can be formed on the base or on the automatically operated stationary conveying system and are not driven or are driven.

The described picking warehouse and method for storing and picking is particularly suitable for the fresh food sector where perishable articles, such as fruit and vegetables, require a fast turnover of articles and usually only a limited number of different types have to be picked at the same time. The articles 2/article carrier 3 may be handled particularly efficiently with a high picking performance in short periods of time.

Finally, it should also be noted that the scope of protection is determined by the claims. Nevertheless, the description and drawings are to be used for construing the claims. Individual features or feature combinations from the different exemplary embodiments shown and described may represent independent inventive solutions.

In particular, it should also be noted that the devices shown may in reality comprise more or fewer components than those shown. In some cases, the shown devices and/or their components may not be depicted to scale and/or be enlarged and/or reduced in size.

LIST OF REFERENCE NUMBERS

-   -   1 Picking warehouse     -   2 Article(s)     -   3 Article carrier     -   4 Delivery zone     -   5 Storage zone     -   6 Order processing zone     -   7 a . . . 7 d Transport loading aid     -   8 a . . . 8 c Article carrier stack group     -   9 Transport vehicle     -   10 Loading device     -   11 Unloading device (automatic)     -   15 Order-processing computer     -   16 Control system     -   17 a . . . 17 c Delivery load carrier     -   20 Testing device     -   21 Conveying system of checking station     -   22 Detection device     -   23 Input and/or output device     -   24 Clamping and lifting device     -   25 a . . . 25 d Data carrier     -   26 a Upper article carrier stack     -   26 b Lower article carrier stack     -   27 a . . . 27 b Clamping jaw     -   28 Lifting frame     -   30 Conveying system of loading station     -   31 Conveying system between checking station and loading station     -   40 Service location for article carrier stack group of loading         device     -   41 Service location for transport loading aid of loading device     -   42 Transfer device of loading device     -   43 Buffer surface for transport loading aid of loading device     -   45 Storage surface     -   50 Conveying system of loading device     -   51 Telescopic fork     -   52 Tilting and back tilting device     -   53 Placing plate     -   70 Target loading aid     -   71 a . . . 71 b Service location for transport loading aid of         automatic unloading device     -   72 Transfer device of unloading device     -   73 Buffer surface for transport loading aid     -   74 Waiting zone     -   80 Support construction     -   81 Gantry slide     -   82 Gantry arm     -   83 Gantry slide     -   84 Gantry slide     -   85 Cleaning robot     -   90 Transport vehicle     -   91 a . . . 91 b Service location for stack loading aid of         automatic unloading device     -   92 Buffer surface for stack loading aid of automatic unloading         device     -   100 Unloading device (manual)     -   100 a First stack loading aid     -   100 b Second stack loading aid     -   101 a Service location for transport loading aid of manual         unloading device     -   101 b Service location for stack loading aid of manual unloading         device     -   102 Working area     -   103 Working surface     -   104 a Buffer surface for transport loading aid of manual         unloading device     -   104 b Buffer surface for stack loading aid of manual unloading         device     -   105 a Lifting platform of transport loading aid     -   105 b Lifting platform of stack loading aid     -   106 Order stack     -   110 Lading device     -   111 Service location for stack loading aid of lading device     -   112 Transfer device of lading device     -   113 Buffer surface for stack loading aid of lading device     -   120 Load securing device     -   121 Securing means     -   122 Service location for stack loading aid of load securing         device     -   123 Lifting frame     -   124 Telescopic fork     -   125 Buffer surface for stack loading aid of load securing device     -   150 Chassis     -   151 Loading platform     -   152 Wheel     -   153 Steerable wheel     -   154 Drive control     -   160 Transport safeguard of transport vehicle     -   161 a . . . 161 b Side wall     -   170 Target loading aid     -   171 Base wall part     -   172 Transport frame     -   173 a . . . 173 b Side wall     -   174 Transport safeguard of transport loading aid     -   175 Foot     -   176 a First longitudinal edge     -   176 b Second longitudinal edge     -   205 Transport frame     -   206 Base wall part     -   207 Transport safeguard of stack loading aid     -   208 a . . . 208 b Side wall     -   209 Foot     -   210 a First longitudinal edge     -   210 b Second longitudinal edge     -   215 Receiving channel     -   216 Placing block     -   220 a First temperature zone     -   220 a Second temperature zone 

1-29. (canceled) 30: A method for storing and picking article carriers (3) that contain articles (2), in particular groceries from the fresh food sector, and are stackable in a picking warehouse (1), comprising the steps providing autonomously movable, driverless transport vehicles (9; 90) in the picking warehouse (1), said transport vehicles (9; 90) each having a chassis (150) with a drive unit and a loading platform (150) arranged on the chassis (151) for receiving a mobile transport loading aid (7 a, 7 b, 7 c, 7 d), providing mobile transport loading aids (7 a, 7 b, 7 c, 7 d) in each case for receiving an article carrier stack group (8 a, 8 b, 8 c) in the picking warehouse (1), wherein the mobile transport loading aids (7 a, 7 b, 7 c, 7 d) each comprise a transport rack which forms a transport frame (172) against which the loading platform (151) of a transport vehicle (9; 90) can be positioned, and a base which forms a base wall part (171) on which the article carrier stack group (8 a, 8 b, 8 c) can be placed, and wherein the mobile transport loading aids (7 a, 7 b, 7 c, 7 d) comprise empty transport loading aids (7 a), providing a transport safeguard (160; 174) on at least some of the autonomously movable, driverless transport vehicles (90) or on at least some of the mobile transport loading aids (7 a, 7 b, 7 c), said transport safeguard (160; 174) serving for stabilizing the position of an article carrier stack group (8 a, 8 b, 8 c) while it is received on the mobile transport loading aid (7 b, 7 c, 7 d), wherein the at least some of the autonomously movable, driverless transport vehicles (90) each comprise the loading platform (151), and side walls (161 a, 161 b), said side walls (161 a, 161 b) being arranged adjacently to the loading platform (151), and forming the transport safeguard (160) for stabilizing the position of the article carrier stack group (8 a, 8 b, 8 c) while it is placed on the loading platform (151) with the transport loading aid (7 d), and comprise a first side wall (161 a) and a second side wall (161 b), wherein the first side wall (161 a) and the second side wall (161 b) enclose an angle, or wherein the at least some of the mobile transport loading aids (7 a, 7 b, 7 c) each additionally comprise side walls (173 a, 173 b), which form the transport safeguard (174) for stabilizing the position of the article carrier stack group (8 a, 8 b, 8 c) while it is placed on the base wall part (171), and comprise a first side wall (173 a) and a second side wall (173 b), wherein the first side wall (173 a) and the second side wall (173 b) enclose an angle, and wherein the base wall part (171) is both inclined downwardly at a first inclination angle (α1) with respect to a horizontal plane spanned between the first side wall (161 a; 173 a) and the second side wall (161 b; 173 b) in the direction towards the first side wall (161 a; 173 a), and inclined downwardly at a second inclination angle (α2) with respect to a horizontal plane spanned between the first side wall (161 a; 173 a) and the second side wall (161 b; 173 b) in the direction towards the second side wall (161 b; 173 b), wherein the first side wall (161 a; 173 a) and the second side wall (161 b; 173 b) are aligned perpendicularly to the base wall part (171), providing article carrier stack groups (8 a, 8 b, 8 c) comprising multiple article carriers (3) arranged next to one another and on top of one another in a delivery zone (4) of the picking warehouse (1), transporting empty transport loading aids (7 a) by means of the autonomously movable, driverless transport vehicles (9; 90) to a loading station and providing one or multiple empty transport loading aid(s) (7 a) either on one or on multiple automatically operated loading device(s) (10) or on a buffer surface (43) close to the loading device(s) (10), loading one of the empty transport loading aids (7 a), which is provided at the automatically operated loading device (10), with the article carrier stack group (8 a, 8 b, 8 c), which is provided in the delivery zone (4) and is received essentially unchanged on the empty transport loading aid (7 a), by the automatically operated loading device (10), transporting the transport loading aid (7 b, 7 c) loaded with the article carrier stack group (8 a, 8 b, 8 c) by the autonomously movable, driverless transport vehicle (9; 90) from the loading station to a storage zone (5) and stabilizing the position of the article carrier stack group (8 a, 8 b, 8 c) by the transport safeguard (160; 174) during the transport movement of the loaded transport loading aid (7 b, 7 c), placing the transport loading aid (7 b, 7 c) loaded with the article carrier stack group (8 a, 8 b, 8 c) on a storage surface (45) in the storage zone (5), storing the transport loading aids (7 b, 7 c) loaded with the article carrier stack groups (8 a, 8 b, 8 c) in the storage zone (5), processing a picking order comprising the following steps transporting one or multiple transport loading aid(s) (7 b, 7 c) containing the article carriers (3) required for a picking order from the storage zone (5) to an un-loading station and providing said transport loading aid(s) (7 b, 7 c) either at one or at multiple automatically operated unloading device(s) (11) or on a buffer sur-face (73) close to the unloading device(s) (11) by means of one or multiple autonomously movable, driverless transport vehicle(s) (9; 90) and stabilizing the position of the article carrier stack group (8 a, 8 b, 8 c) by the transport safeguard (160; 174) during the transport movement of the loaded transport loading aid (7 b, 7 c), unloading one or multiple ones of the transport loading aid(s) (7 b, 7 c) which is (are) provided at the automatically operated unloading device(s) (11), by removing the article carriers (3) required for processing the mentioned picking order, and assembling the article carriers (3) on one or multiple target loading aids (70; 170) for the mentioned picking order in an order processing zone (6). 31: The method for storing and picking articles according to claim 30, wherein the provision of article carrier stack groups comprises the provision of article carrier stack groups (8 a, 8 b, 8 c) on delivery load carriers (17 a, 17 b, 17 c), and loading one of the empty transport loading aids (7 a) with one of the article carrier stack groups (8 a, 8 b, 8 c) comprises loading one of the empty transport loading aids (7 a) with an article carrier stack group (8 a, 8 b, 8 c) on a delivery load carrier (17 a, 17 b, 17 c). 32: The method for storing and picking articles according to claim 30, wherein assembling the article carriers (3) for the mentioned picking order is carried out such that an individual article carrier (3) removed from the article carrier stack group (8 a, 8 b, 8 c) at the unloading device (11) or an article carrier stack removed from the article carrier stack group (8 a, 8 b, 8 c) is transferred onto a target loading aid (70; 170) by the unloading device (11). 33: The method for storing and picking articles according to claim 30, comprising the additional steps i) transporting a transport loading aid (7 b, 7 c) from the unloading station back to the storage zone (5) after removal of the article carriers (3) if not all article carriers (3) have been removed from the mentioned transport loading aid (7 b, 7 c), or ii) transporting a transport loading aid (7 b, 7 c) from a first unloading device (11) to a second unloading device (11) after removal of the article carriers (3) if not all article carriers (3) have been removed from the mentioned transport loading aid (7 b, 7 c) and if said article carriers (3) are needed at the second unloading device (11) for a picking order, or iii) transporting a transport loading aid (7 b, 7 c) from the unloading device (11) to a waiting zone (74) in the unloading station after removal of the article carriers (3) if not all article carriers (3) have been removed from the mentioned transport loading aid (7 b, 7 c) and if said article carriers (3) are needed at the mentioned unloading device (11) or one of the unloading devices (11) for an already advised picking order, or iv) transporting a transport loading aid (7 b, 7 c) back to the loading station after removal and providing the transport loading aid (7 b, 7 c) either at the automatically operated loading device (10) or on the buffer surface (43), if all article carriers (3) have been (7 b, 7 c) removed from the mentioned transport loading aid (7 b, 7 c), v) stabilizing the position of an opened article carrier stack group (8 a, 8 b, 8 c) if not all article carriers (3) were removed from the mentioned transport loading aid (7 b, 7 c), by the transport safeguard (160; 174) during the mentioned transport movement according to case i), ii) and iii). 34: The method for storing and picking articles according to claim 30, wherein the article carriers (3) are containers and/or cartons. 35: The method for storing and picking articles according to claim 30, wherein the article carriers (3) form different dimensions. 36: The method for storing and picking articles according to claim 30, comprising the steps providing a first temperature zone (220 a) in the storage zone (5), in which the transport loading aids (7 b, 7 c) with the article carrier stack groups (8 a, 8 b, 8 c) comprising article carriers (3) arranged next to one another and on top of one another containing articles (2) of a first article group can be stored, providing a second temperature zone (220 b) in the storage zone (5), in which the transport loading aids (7 b, 7 c) with the article carrier stack groups comprising article carriers (3) arranged next to one another and on top of one another containing articles (2) of a second article group can be stored, defining a first article group and of a second article group, to which first article group articles (2) of a first storage temperature are assigned and to which second article group articles (2) of a second storage temperature are assigned, and detecting data comprising data of the first article group, in particular a first storage temperature for the articles (2), and the second article group, in particular a second storage temperature for the articles (2), on a computer system, identifying the article carrier stack group (8 a, 8 b, 8 c) and/or transport loading aid (7 b, 7 c) by means of a detection device provided in the delivery zone (4) by reading a data carrier (25 b, 25 c), said data carrier (25 b, 25 c) being provided in each case on the article carrier stack groups (8 a, 8 b, 8 c) and/or transport loading aids (7 b, 7 c), selectively transporting the transport loading aids (7 b, 7 c) in each case loaded with the article carrier stack group (8 a, 8 b, 8 c) by the autonomously movable, driverless transport vehicles (9; 90) either into the first temperature zone (220 a) or the second temperature zone (220 b) and stabilizing the position of the article carrier stack group by the transport safeguard (160; 174) during the transport movement, storing the transport loading aids (7 b, 7 c) with the article carrier stack group (8 a, 8 b, 8 c) comprising article carriers (3) arranged next to one another and on top of one another containing articles (2) of the first article group in the first temperature zone (220 a), storing the transport loading aids (7 b, 7 c) with the article carrier stack group (8 a, 8 b, 8 c) comprising article carriers (3) arranged next to one another and on top of one another containing articles (2) of the second article group in the second temperature zone (220 b). 37: The method for storing and picking articles according to claim 36, comprising the steps transporting one or multiple transport loading aid(s) (7 b, 7 c) containing the article carriers (3) required for a first picking order from the first temperature zone (220 a), and transporting one or multiple transport loading aid(s) (7 b, 7 c) containing the article carriers (3) required for a second picking order from the second temperature zone (220 b), to the unloading station using a commonly used, automatically operated unloading device (11) and stabilizing the position of the article carrier stack group (8 a, 8 b, 8 c) by the transport safeguard (160; 174) during the transport movement, providing the mentioned transport loading aid(s) (7 b, 7 c) for the first picking or-der either at the automatically operated unloading device (11) or on a buffer sur-face (73) near the unloading device (11) by means of the autonomously movable, driverless transport vehicle(s) (9; 90), providing the mentioned transport loading aid(s) (7 b, 7 b) for the second picking order either at the automatically operated unloading device (11) or on a buffer surface (73) near the unloading device (11) by means of the autonomously movable, driverless transport vehicle(s) (9; 90), sequentially assembling article carriers (3) on a first target loading aid (70; 170) with multiple article carriers (3) containing articles (2) of a first article group, and assembling article carriers (3) on a second target loading aid (70; 170) with multiple article carriers (3) containing articles (2) of a second article group at the removal station with a commonly used, automatically operated un-loading device (11). 38: The method for storing and picking articles according to claim 30, further comprising the steps providing stack loading aids (100 a, 100 b) in each case for receiving and optionally stabilizing the position of an order stack (106) assembled of the article carriers (3) according to the mentioned picking order, of which the stack loading aids (100 a, 100 b) comprise at least one first stack loading aid (100 a) and/or at least one second stack loading aid (100 b), and which, in turn, comprise a base wall part (206) and optionally side walls (208 a, 208 b) projecting therefrom, lading the first stack loading aid (100 a) with a target loading aid (70) at a lading station by means of one or multiple automatically operated lading device(s) (110), by the target loading aid (70) being placed on the base wall part (206) if a first stack loading aid (100 a) is used in the picking warehouse (1), and/or defining the second stack loading aid (100 b) as the target loading aid (110) if a second stack loading aid (100 b) is used in the picking warehouse (1). 39: The method for storing and picking articles according to claim 38, comprising the steps transporting stack loading aids (100 a, 100 b) by means of the autonomously movable, driverless transport vehicles (9; 90) to the unloading station and providing one or multiple stack loading aid(s) (100 a, 100 b) either on one or on multiple automatically operated unloading device(s) (11) or on a buffer surface (92) close to the unloading device(s) (11), assembling the article carriers (3) according to the mentioned picking order to the order stack (106) on the target loading aid (70) in the first stack loading aid (100 a) or on the base wall part (206) of the second stack loading aid (100 b), said first stack loading aid (100 a) or second stack loading aid (100 b) being pro-vided at the automatically operated unloading device(s) (11). 40: The method for storing and picking articles according to claim 30, wherein processing a picking order additionally comprises the steps transporting one or multiple transport loading aid(s) (7 b, 7 c) containing the article carriers (3) required for the picking order from the storage zone (5) to the unloading station and providing said transport loading aid(s) (7 b, 7 c) either at one or at multiple partially automated unloading device(s) (100) or on a buffer surface (104 a) close to the unloading device(s) (100) by means of one or multiple autonomously movable, driverless transport vehicle(s) (9; 90) and stabilizing the position of the article carrier stack group (8 a, 8 b, 8 c) by the transport safeguard (160; 174) during the transport movement of the loaded transport loading aid(s) (7 b, 7 c), manually unloading one or multiple ones of the transport loading aid(s) (7 b, 7 c) which is (are) provided at the partially automated unloading device(s) (100), by removing the article carriers (3) required for processing the mentioned picking order, and manually assembling the article carriers (3) on one or multiple target loading aids (70; 170) for the mentioned picking order, if the target loading aid(s) (70; 170) is (are) provided at the partially automated unloading device(s) (100). 41: The method for storing and picking articles according to claim 40, wherein providing the mentioned transport loading aid(s) (7 b, 7 c) at one or multiple partially automated unloading device(s) (100) comprises the steps receiving a transport loading aid (7 b, 7 c) from an autonomously movable, driverless transport vehicle (9; 90) to a lifting platform (105 a) of the unloading device(s) (100), serving the article carriers (3) at a serving level by lifting the transport loading aid (7 b, 7 c), which is placed on the lifting platform (105 a), in order to enable ergonomic unloading of the article carriers (3) by a picker. 42: The method for storing and picking articles according to claim 40, further comprising the steps transporting empty target loading aids (70; 170), by means of the autonomously movable, driverless transport vehicles (9; 90), to the unloading station and providing said empty target loading aids (70; 170) either at one or multiple partially automated unloading device(s) (100) or on a buffer surface (104 b) close to the unloading device(s) (100) by means of one or multiple autonomously movable, driverless transport vehicles (9; 90), manually assembling the article carriers (3) on one or multiple empty target loading aids (70; 170) for the mentioned picking order, if the empty target loading aid(s) (70; 170) is (are) provided at the partially automated unloading device(s) (100). 43: The method for storing and picking articles according to claim 40, further comprising the steps transporting partially loaded target loading aids (70; 170) by means of the autonomously movable, driverless transport vehicles (9; 90) from the automatically operated unloading device (11) to the partially automated unloading de-vice (100) or to a buffer surface (104 b) close to the partially automated unloading device(s) (100) after the article carriers (3) have been assembled on the partially loaded target loading aid (70; 170) at the automatically operated unloading device (11) and if article carriers (3) are still required for the mentioned picking order which are provided via the transport loading aids (7 b, 7 c) at the partially automated unloading device(s) (100), manually assembling the article carriers (3) on one or multiple partially loaded target loading aids (70; 170) for the mentioned picking order, if the partially loaded target loading aid(s) (70; 170) is (are) provided at the partially automated unloading device(s) (100). 44: The method for storing and picking articles according to claim 40, comprising the steps transporting stack loading aids (100 a, 100 b) by means of the autonomously movable, driverless transport vehicles (9; 90) to the unloading station and providing one or multiple stack loading aid(s) (100 a, 100 b) either on one or on multiple partially automated unloading device(s) (100) or on a buffer surface (104 b) close to the unloading device(s) (100), assembling the article carriers (3) according to the mentioned picking order to the order stack (106) on the target loading aid (70) in the first stack loading aid (100 a) or on a base wall part (206) of the second stack loading aid (100 b), said first stack loading aid (100 a) or second stack loading aid (100 b) being pro-vided at the partially automated unloading device(s) (100). 45: The method for storing and picking articles according to claim 38, further comprising the steps providing an order stack load securing station either with one or multiple automatically operated load securing device(s) (120) or with one or multiple automatically operated load securing device(s) (120) and a buffer surface (125) close to the load securing device(s) (120), said load securing devices (120) being formed for securing transport of an order stack (106) with a securing means (121), transporting stack loading aids (100 a, 100 b) each loaded with one order stack (106) by means of the autonomously movable, driverless transport vehicles (9; 90) to the mentioned order stack load securing station and providing one or multiple stack loading aid(s) (100 a, 100 b) either on one or on multiple automatically operated load securing device(s) (120) or on a buffer surface (125) close to the load securing device(s) (120), removing the order stack (106) from the stack loading aid (100 a, 100 b) by means of a lifting device (123, 124), by means of which the target loading aid (70) with the order stack (106) is lifted from the first stack loading aid (100 a), if the picking warehouse (1) comprises the first stack loading aid (100 a), or by means of which the order stack (106) is lifted from the second stack loading aid (100 b) if the picking warehouse (1) comprises the second stack loading aid (100 b), securing the order stack (106) with the securing means (121) by means of the automatically operated load securing device (120), in that the securing means (121) is placed circumferentially around the order stack (106), transporting the secured order stack (106), in particular by means of the autonomously movable, driverless transport vehicles (9; 90), from the load securing station to a distribution zone, transporting the unloaded stack loading aids (100 a, 100 b) by means of the autonomously movable, driverless transport vehicles (9; 90), comprising transporting the first stack loading aid (100 a) from the load securing station to the lading station with one or multiple automatically operated lading device(s) (110), if a first stack loading aid (100 a) is used in the picking warehouse (1), and/or transporting the second stack loading aid (100 b) from the load securing station to the unloading station and providing the second stack loading aid(s) (100 b) either at an automatically operated unloading device (11) or on a buffer sur-face (92) close to the unloading device (11), if a second stack loading aid (100 b) is used in the picking warehouse (1). 46: A picking warehouse (1) for storing and picking article carriers (3), which contain articles (2) and are stackable, for carrying out the method according to claim 30, comprising an order-processing computer (15) for detecting a picking order and for determining articles (2) which are required for the picking order, a plurality of transport loading aids (7 a, 7 b, 7 c, 7 d) in each case for receiving an article carrier stack group (8 a, 8 b, 8 c), wherein the mobile transport loading aids (7 a, 7 b, 7 c, 7 d) each comprise a transport rack which forms a transport frame (172) against which the loading platform (151) of a transport vehicle (9; 90) can be positioned, and a base which forms a base wall part (171) on which the article carrier stack group (8 a, 8 b, 8 c) can be placed, and wherein the mobile transport loading aids (7 a, 7 b, 7 c, 7 d) comprise empty transport loading aids (7 a), a delivery zone (4) for providing article carrier stack groups (8 a, 8 b, 8 c) comprising multiple article carriers (3) arranged next to one another and on top of one another, a loading station either with one or multiple automatically operated loading device(s) (10) or with one or multiple automatically operated loading device(s) (10) and a buffer surface (43) close to the loading device(s) (10), said loading device (10) being formed for loading one of the empty transport loading aids (7 a) with an article carrier stack group (8 a, 8 b, 8 c), wherein the empty transport loading aid (7 a) is provided for loading with an essentially unchanged article carrier stack group (8 a, 8 b, 8 c) at the automatically operated loading device (10), wherein the article carrier stack group (8 a, 8 b, 8 c) comprises multiple article carriers (3) arranged next to one another and on top of one another, a storage zone (5) for storing the transport loading aids (7 b, 7 c) loaded with article carrier stack groups (8 a, 8 b, 8 c) on a storage surface (45), an unloading station with one or multiple automatically operated unloading device(s) (11) for unloading one or multiple ones of the transport loading aid(s) (7; 107) by removing the article carriers (3) required for processing the picking order from the article carrier stack group (8 a, 8 b, 8 c), wherein the transport loading aid(s) (7 b, 7 c) is (are) provided for unloading at the automatically operated unloading device(s) (11), and a plurality of autonomously movable, driverless transport vehicles (9; 90) which are controlled by a control system (16) and each have a chassis (150) with a drive unit and a loading platform (151) arranged on the chassis (150) for receiving a transport loading aid (7 a, 7 b, 7 c), to transport empty transport loading aids (7 a) to the loading station and to provide one of the empty transport loading aids (7 a) either at the automatically operated loading device (10) or on the buffer surface (43) close to the loading de-vice (10), and to transport the transport loading aid (7 b, 7 c) loaded with the article carrier stack group (8 a, 8 b, 8 c) from the loading station to the storage zone (5), and to transport one or multiple transport loading aid(s) (7 b, 7 c) containing the article carriers (3) required for a picking order with an article carrier stack group (8 a, 8 b, 8 c) from the storage zone (5) to an unloading station and to pro-vide said transport loading aid(s) (7 b, 7 c) either at one or multiple automatically operated unloading device(s) (11) or on a buffer surface (73) close to the unloading device(s) (11). wherein on at least some of the autonomously movable, driverless transport vehicles (9; 90) or on at least some of the mobile transport loading aids (7 a, 7 b, 7 c) a provision of a transport safeguard (160; 174) is provided, said transport safeguard (160; 174) serving for stabilizing the position of an article carrier stack group (8 a, 8 b, 8 c) while it is received on the mobile transport loading aid (7 b, 7 c, 7 d), wherein the at least some of the autonomously movable, driverless transport vehicles (90) each comprise the loading platform (151), and side walls (161 a, 161 b), said side walls (161 a, 161 b) being arranged adjacently to the loading platform (151), and forming the transport safeguard (160) for stabilizing the position of the article carrier stack group (8 a, 8 b, 8 c) while it is placed on the loading platform (151) with the transport loading aid (7 d), and comprise a first side wall (161 a) and a second side wall (161 b), wherein the first side wall (161 a) and the second side wall (161 b) enclose an angle, or wherein the at least some of the mobile transport loading aids (7 a, 7 b, 7 c) each additionally comprise side walls (173 a, 173 b), which form the transport safeguard (174) for stabilizing the position of the article carrier stack group (8 a, 8 b, 8 c) while it is placed on the base wall part (171), and comprise a first side wall (173 a) and a second side wall (173 b), wherein the first side wall (173 a) and the second side wall (173 b) enclose an angle, and wherein the base wall part (171) is both inclined downwardly at a first inclination angle (α1) with respect to a horizontal plane spanned between the first side wall (161 a; 173 a) and the second side wall (161 b; 173 b) in the direction towards the first side wall (161 a; 173 a), and inclined downwardly at a second inclination angle (α2) with respect to a horizontal plane spanned between the first side wall (161 a; 173 a) and the second side wall (161 b; 173 b) in the direction towards the second side wall (161 b; 173 b), wherein the first side wall (161 a; 173 a) and the second side wall (161 b; 173 b) are aligned perpendicularly to the base wall part (171). 47: The picking warehouse according to claim 46, comprising one or multiple stack loading aids (100 a, 100 b) each for receiving and optionally stabilizing the position of an order stack (106) assembled of the article carriers (3) according to the mentioned picking order, which comprise at least one first stack loading aid (100 a) and/or at least one second stack loading aid (100 b). 48: The picking warehouse according to claim 47, wherein the at least one first stack loading aid (100 a) comprises a transport rack, a base and side walls (208 a, 208 b) projecting therefrom, wherein the transport rack forms a transport frame (205), against which a loading platform (151) of the transport vehicle (9; 90) can be positioned, and wherein the base forms a base wall part (206) onto which a target loading aid (70), in particular a pallet, with the order stack (106) stacked thereon can be placed, and the side walls (208 a, 208 b) form a transport safeguard (207) for stabilizing the position of an order stack (106) when it is received on the base wall part (206) with the target loading aid (70). 49: The picking warehouse according to claim 47, wherein the at least one second stack loading aid (100 b) comprises a transport rack, a base and side walls (208 a, 208 b) projecting therefrom, wherein the transport rack forms a transport frame (205), against which a loading platform (151) of the transport vehicle (9; 90) can be positioned, and wherein the base comprises a base wall part (206), which forms placing blocks (216) projecting on its upper side and being separated from one another by receiving channels (215), onto which the article carriers (3) of the order stack (106) can be placed, such that the at least one second stack loading aid (100 b) forms the target loading aid (170) and the side walls (208 a, 208 b) form a transport safeguard (207) for stabilizing the position of an order stack (106) when it is received on the base wall part (206). 50: The picking warehouse according to claim 46, comprising an order stack load securing station either with one or multiple automatically operated load securing device(s) (120) or with one or multiple automatically operated load securing device(s) (120) and a buffer surface (125) close to the load securing device(s) (120), said load securing device (120) being formed for secure transport of an order stack (106) with a securing means (121), and which comprises a lifting device (123, 124), by means of which the target loading aid (70) with the order stack (106) is lifted from the stack loading aid (100 a) if the picking warehouse (1) comprises the first stack loading aid (100 a), or by means of which the order stack (106) is lifted from the stack loading aid (100 b) if the picking warehouse (1) comprises the second stack loading aid (100 b), for stabilizing the order stack (106) with the securing means (121). 51: The picking warehouse according to claim 46, comprising a device for detecting data relating to the article carrier stack group (8 a, 8 b, 8 c) and/or detecting data relating to the article carrier (3) and/or detecting data relating to the article (2) in the article carrier (3), and by a data line to the control system (16), in order to transmit to it the data relating to the article carrier stack group (8 a, 8 b, 8 c) and/or the data relating to the article carrier (3) and/or the data relating to the article (2) in the article carrier (3), wherein the control system (16) comprises a control logic and processes the data relating to the article carrier stack group (8 a, 8 b, 8 c) and/or the data relating to the article carrier (3) and/or the data relating to the article (2) in the article carrier (3) in accordance with the control logic and generates control commands, by means of which the unloading device(s) (11), in particular a gripping unit of the unloading device (11), is (are) controlled and/or transport commands are generated by means of which the autonomously movable, driverless transport vehicle(s) (9; 90) is (are) controlled. 52: The picking warehouse according to claim 46, comprising a checking station in the delivery zone (4) with one or multiple testing device(s) (20) for checking quality features of the articles (2) in the article carriers (3), a conveying system for inward transport of an article carrier stack group (8 a, 8 b, 8 c) and for outward transport of an article carrier stack group (8 a, 8 b, 8 c), a detection device (22) for identifying the article carrier stack group (8 a, 8 b, 8 c) which is connected to the control system (16) via a data line, and an input and/or output device (23) to input data from the check of the quality features, which is connected to the control system (16) via a data line. 53: The picking warehouse according to claim 52, wherein the checking station comprises an automatically operated clamping and lifting device (24) along the conveying system for inwardly transporting an article carrier stack group (8 a, 8 b, 8 c) and outwardly transporting an article carrier stack group (8 a, 8 b, 8 c), by means of which clamping and lifting device (24) the article carrier stack group (8 a, 8 b, 8 c) can be separated into an upper article carrier stack (26 a) and a lower article carrier stack (26 b) and an access region is created between the upper article carrier stack (26 a) and the lower article carrier stack (26 b), said access region allowing the removal of at least one article carrier (3) from the lower article carrier stack (26 a) or of an article (2) from an article carrier (3) of the lower article carrier stack (26 b). 54: The picking warehouse according to claim 53, wherein the clamping device comprises clamping jaws (27 a, 27 b) movable by at least one drive device relative to one another between an opened position and a clamping position, said clamping jaws in the clamping position clamping the article carrier stack group (8 a, 8 b, 8 c) along the circumference of at least one article carrier layer and on at least two sides, and the lifting device comprises a lifting frame movable by at least one drive device in the vertical direction relative to the conveying system for inward transport of an article carrier stack group (8 a, 8 b, 8 c) and outward transport of an article carrier stack group (8 a, 8 b, 8 c), with the clamping jaws (27 a, 27 b) being mounted on said lifting frame (28) and by which lifting frame (28) the clamping jaws (27 a, 27 b) can be moved from a lower height position into an upper height position in which the upper article carrier stack (26 a) of the article carrier stack group (8 a, 8 b, 8 c) are lifted off the lower article carrier stack (26 b) of the article carrier stack group (8 a, 8 b, 8 c). 